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You are viewing: Homeopathics - Calcarea-carb - Contemporary - Level 3
to Homeopathics - Calcarea-carb - Level 2:

Mother of Pearl &
Doctrine of Signatures

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Dr Peter Darashah


Materia Medica

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J. Frey, PhD


Mother of Pearl &
Doctrine of Signatures

Brought to you by:
H4H logo
Dr Peter Darashah

Scroll right for beautiful photos of pearl formation >>>>>>>>

Mother of Pearl
Mother of pearl also called Nacre is a composite material produced by some oysters and mollusks as an inner shell layer(as an added protection against invading organisms or parasites); it is also what makes up pearls. Nacre is very strong, resilient, and iridescent. Pearls and the inside layer of pearl oyster and freshwater pearl mussel shells are made of nacre.

The process of laying down the inner protective nacre shell layer takes place by the secretion of aragonite (a form of calcium carbonate) which is laid down in the form of layer upon layer of parallel plates. As the aragonite plate is very brittle a silk like layer of chitin (a long chain polysaccharide chain containing nitrogen and based on the glucose molecule) is interspersed between each plate to provide flexibility. The composite of aragonite and chitin is known as nacre.

Nacre appears iridescent because the thickness of the aragonite platelets is close to the wavelength of visible light. This results in interference of the light wavelengths resulting in fractionated colours of light being reflected from different viewing angles.

A pearl is produced when an invading organism or piece of grit enters beneath the oyster/mollusk shell. Grit may also be introduced artificially into the oyster so as to produce a pearl. The pearl formation process is similar to that of the formation of the inner nacre shell. The invading organism is coated with layer upon layer of nacre as a defense mechanism. Eventually the coatings continue to such an extent that the particle becomes large enough to form a pearl.

Calcium is a mineral that is stored in the bones. Nearly all the calcium in the body is stored in bone tissue. A small amount (around 1%) circulates in the blood and other body fluids, or is inside our cells.

Calcium is required for:-
The maintenance of bone and tooth health.
Blood clotting
Normal functioning of the brain and spinal cord (central nervous system) and
The maintenance of muscles function.

How are calcium levels optimised?
Optimum calcium levels are controlled by 3 hormones including the
Parathyroid hormone (PTH) - made by the parathyroid glands
Vitamin D and

Blood calcium levels in the case of hypocalcaemia (undersupply) are optimised by these 3 hormones in the following manner. Firstly additional calcium is released from the bones into the blood, secondly the amount of calcium absorbed from food in the bowels is increased and thirdly the rate of calcium elimination through the kidneys is reduced. The opposite happens in hypercalcaemia when blood calcium levels get too high. Both an over or under supply of calcium can be dangerous.

This condition affects a very small percentage of the population with women over the age of 50 the most likely candidates to suffer.

The main cause of hypercalcaemia is:-
Primary hyperparathyroidism due to excess PTH. This excess occurs as a result of an enlargement of one or more of the parathyroid glands.

Other conditions leading to hypocalcaemia include:-
Too much calcium leaking out of the bones into the blood.
The kidneys not being able to get rid of excess calcium
Consuming food too rich in calcium
Conditions arising as a result of hypercalcaemia include:-
Abdominal pain
Nausea and vomiting
Loss of appetite
Excessive thirst
Excessive passing of water
Weight loss

Eventually more serious problems can arise including:-
Bone fractures
Kidney stones
Sudden heart attacks.

Hypocalcaemia (under supply)
The most common cause of hypocalcaemia is hypoparathyriodism following accidental removal, partial removal or damage to the parathyroid glands during thyroid surgery.

Other conditions leading to hypocalcaemia are:-
Babies born without parathyroid glands or with conditions that make their bodies unable to use parathyroid hormone.
Infants born prematurely or to a diabetic mother.
Blood poisoning (sepsis),
Breakdown of muscle tissue (rhabdomyolysis),
Cancers that have spread to the bones.
kidney failure

Conditions arising as a result of hypocalcaemia include:-
Neuromuscular which the nerves and muscles, which are directly related to blood calcium levels, may spasm or twitch.
Muscle cramps in the legs and arms.
Numbness and tingling of the fingers and toes.
Depression or increased irritability
Confusion or disorientation
Irregular heart contractions due to electrolyte disturbance.

Homeopathic Source
Hahnemann, who first proved Calc-c directed that it be prepared from the inner, snow-white portion of oyster shells, the middle layers being selected so that they might be as free as possible from extraneous substances, as well as to have a preparation of uniform composition and one easily duplicated whenever it become necessary to prepare a new supply. Hahnemann says, in reference to the preparation of this and similar remedies, "I have endeavored to secure the medicinal material for homoeopathic use, wherever practicable, in the most simple and natural manner, and to give directions of this kind; so that every physician, wherever he may be, may secure the same substance. For this purpose, which was to me most important, I had to avoid as far as possible all directions, by means of costly apparatus, to secure the absolute chemical purity of the medicinal substances used"
Nevertheless homeopathic Calc-c is not pure and for this reason Hering preferred to call it Calcarea ostrearum (Calc-o) a name which is used by some authors in their books. However the more common name of Calcarea carbonica (Calc-c) is still the most widely used.

Doctrine of Signatures

  • The hard exterior protecting a soft interior represents a soft person who has developed a hard exterior in order to protect their inner vulnerabilities.
  • The valuable pearl hidden inside the oyster is representative of a priceless trait which is so surrounded with negative forces as to be valueless. The negativity must first be dispersed in order to release and unblock the true potential of the individuals traits.
  • The high amount of negativity associated with the individual is reflected by a hesitant, unsure, halting, uncertain, unresponsive, inert attitude.
  • The toneless musculature is indicative of a soft flabby overweight person. Some people exhibit this characteristic in their handshake which is soft and flabby with no vital energy evident in their grip.
  • The mollusk is capable of one particular form of muscular movement however that of closing its shell with vice like tightness at the slightest sign of danger.
  • This is representative in the carbonic constitution by a certain dogged, obstinate, inflexible determination to continue with their decided course of action undeterred and regardless of consequences.
  • The habit of the mollusk of lying motionless on the sea bed represents an inactive or person of extreme sessile habit.
  • Again the bottom of the sea bed is the coldest part of the ocean and consequently the carbonic person is recognised by their cold extremities.
  • The mollusk is a wet and slimy creature reminiscent of the copious perspiration associated with the carbonic type.

Because calcium exhibits symptoms in opposing situations of both deficiency and excess its constitutional characteristics may also display opposing tendencies. Thus although the foregoing Doctrine of Signatures characterises the usual constitutional typology opposite typologies should not be automatically excluded from the carbonic constitution. For example
- a thin person (rather than the normal typology of soft, flabby and overweight) but who has other carbonic characteristics such as sessile nature, cold extremities, copious perspiration but still requires heat, constipation etc.
-  a restless person (rather than the normal sessile typology) but who has other carbonic characteristics such as dogged inflexibility, great negativity, slow development and poor dentition, digestive problems of assimilation, avoids work by keeping his abilities hidden under wraps, tendency to laziness etc. 


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by Rebecca J. Frey, PhD

Materia Medica

Calcarea carbonica, abbreviated as Calcarea carb., is a homeopathic remedy made from the middle layer of shells. In chemical terms, Calcarea carbonica is impure calcium carbonate, CaCO3. Unlike most homeopathic remedies, which are made from substances soluble in water or alcohol, Calcarea carbonica must be prepared by a process called trituration. Triturated material is ground or pounded until it is reduced to a fine powder. According to one homeopath, the discovery of trituration is a tribute to the genius of Samuel Hahnemann, the founder of homeopathy. "His method of preparing insoluble substances brought to light in this instance a whole world of therapeutic power formerly unknown."

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General Use
Calcarea carbonica is a remedy that is given more frequently in so-called constitutional prescribing than to treat acute conditions. In constitutional prescribing, the homeopathic practitioner selects a remedy to treat the patient's complete symptomatology, based on a careful evaluation of his or her overall health. In homeopathy, constitution includes a person's heredity and life history as well as present lifestyle, environment, and medical history in the narrow sense. Constitutional treatment is based on the assumption that chronic or recurrent illnesses reflect a specific weakness or vulnerability in the patient's total constitution. It is intended to stimulate healing at the deepest levels of the person's emotions and psyche as well as physical characteristics.
Calcarea carbonica is one of the three most important remedies, along with Lycopodium and Sulphur in the traditional homeopath's medicine chest because all three are antipsoric remedies. The term antipsoric is derived from Hahnemann's theory of miasms. In homeopathy, a miasm is an inherited fundamental weakness or predisposition to chronic diseases. Hahnemann thought that the most ancient and universal miasm, the one that underlay the majority of the chronic illnesses that afflict humans, is the psoric miasm, or Psora. To define a remedy as antipsoric is to say that it is capable of healing a basic source of constitutional vulnerability to disease. Because Calcarea carbonica is an antipsoric remedy, it is also a polychrest remedy. Polychrest is the term used in home-opathy for a remedy that has many uses. Calcarea carbonica is used to treat a variety of diseases and disorders such as acne, arthritis, vaginal discharges in women, night terrors in children, and ringworm on the scalp.
Calcarea carbonica is in general considered a "chilly" remedy, appropriate for people who suffer keenly from the cold and have difficulty keeping warm. A homeopathic practitioner who is asking a patient about symptoms will inquire about the circumstances (e.g., light or dark, heat or cold, rest or activity, etc.) that make the patient feel better or worse. These factors are called modalities in homeopathy. In terms of modalities, patients who need Calcarea carbonica feel worse when they are cold. They may complain of a cold sensation in the abdomen and cold, clammy feet at night. Dampness, activity, and fright also make them feel worse. They feel better when they are warm and lying down.
Other aspects of Calcarea carbonica patients that are noted in the homeopathic literature are their tendency to tire easily, to move slowly and sluggishly, to sweat readily, and to have poor muscle tone and swollen lymph nodes. As a rule, they are passive, overweight people with fair or chalky complexions, large heads, and large puffy abdomens. They appear to be bloated rather than solidly muscular. Their perspiration and other body discharges often have a sour smell. Women may have excessively heavy menstrual periods (menorrhagia) and sore breasts before the flow begins. Calcarea carbonica patients often crave cold or iced drinks even when they do not have much appetite. On the other hand, they may have cravings for indigestible nonfood items, such as coal or chalk. They may dislike milk or meat, and complain of headaches and nausea after meals.

The intellectual constitution of Calcarea carbonica patients is marked by the same slowness and lack of energy that characterizes their physical movements. They may complain of heaviness or sensations of pressure in the head when they are asked to do anything requiring intellectual effort. Children with a Calcarea carbonica constitution are slow to teethe and to walk, but they are also likely to be stubborn and strong-willed. Emotionally, Calcarea carbonica patients tend to be afraid of the dark, of isolation, of getting sick, and of going insane.

Calcarea carbonica is available in tablet form as a single remedy, and in a number of combination remedies. Since it is a polychrest remedy, it is manufactured by all major suppliers of homeopathic medicines, and can be easily purchased from homeopathic pharmacies or over the Internet.

In homeopathy, most precautions about the remedies concern proper storage and administration rather than excluding certain types of patients. Homeopathic practitioners believe that remedies lose their power from exposure to heat, light, or other substances. Guidelines for proper storage of homeopathic remedies include keeping them away from strong sunlight and high temperatures, keeping them in their original containers, and not storing them near perfumes, bleach, or other strong-smelling substances. In addition, patients under care of a homeopath are instructed to avoid coffee or products containing camphor (lip balms, chest rubs, etc.) during a period of homeopathic treatment and for two days after the last dose. Homeopaths believe that these substances counteract or "antidote" the effects of homeopathic remedies.
Precautions regarding homeopathic remedies also include avoiding contamination of the medicine. The patient should not touch the medicine; it should be dispensed into a cup and tipped directly into the mouth. Homeopathic remedies are not taken with water but allowed to dissolve in the mouth. Patients are asked not to eat or drink for about 20 minutes before and after each dose.

Side Effects
Calcarea carbonica, like other homeopathic remedies, has so little of the original substance in the tablets that it is highly unlikely to produce side effects in the usual sense. In addition, because Calcarea carbonica is given more often for constitutional treatment than for acute illnesses, it is not as likely to produce the temporary worsening of the patient's symptoms known as aggravation.
Homeopathic remedies are so dilute that they are highly unlikely to interact with allopathic medications. On the other hand, the homeopathic materia medica indicate that the remedies can be complementary or incompatible with one another. According to Hahnemann, Calcarea carbonica should not be given before Sulphur. Calcarea carbonica is complementary with belladonna but incompatible with bryonia.


Cummings, Stephen, MD, and Dana Ullman, MPH. Every-body's Guide to Homeopathic Medicines. New York: G. P. Putnam's Sons, 1991.
MacEoin, Beth. Homeopathy. New York: HarperCollins Publishers, 1994.
Stein, Diane. "Homeopathy." All Women Are Healers: A Comprehensive Guide to Natural Healing. Freedom, CA: The Crossing Press, 1996.
Vithoulkas, George. Homeopathy: Medicine of the New Man. New York: Fireside Books, 1992.

Boiron Research Foundation. 1208 Amosland Road, Norwood, PA 19074.
Homeopathic Educational Services. 2124 Kittredge Street, Berkeley, CA 94704. (510) 649-0294 or (800) 359-9051.
International Foundation for the Promotion of Homeopathy. 2366 Eastlake Avenue, East. Suite 301, Seattle, WA 98102. (206) 324-8230.
National Center for Homeopathy (NCH). 801 North Fairfax Street, Suite 306, Alexandria, VA 22314. (703) 548-7790. Fax: (703) 548-7792.


Photo Chalk Sticks
Kingdom: Mineral
Latin Name: Calcarea carbonica
Common Name: Chalk
: Calcarea-carb
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A pearl in formastion
A pearl in formation

A pearl revealed
A pearl revealed

Aragonite plate
Aragonite plate

Nacre (Aragonite + Chitin)
(Aragonite + Chitin)


Remedy Headers
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Decachords by
Gladstone Clarke

Calcarea Carbonica

1. Leucophlegmatic subjects ; "fair, fat, flabby" ; Children with tendency to grow fat ; large head and abdomen ; slow development of mind and body ; slow and imperfect ossification (difficult, delayed dentition, open fontanelles, etc.). Girls who grow too rapidly.

2. Anxiety of mind ; all kinds of nervous apprehensions with difficulty expressed and combated ; fears insanity ; night terrors ; children slow to learn though often painstaking and industrious.

3. Easy sweating ; of single parts ; of the head, wetting pillow far around when asleep.

4. Deficient circulation ; coldness of single parts ; cold, clammy feeling especially of legs and feet, also hands.

5. General sourness especially of alimentary system.

6. Digestion weak with much fermentation ; craving for eggs especially during illness ; for indigestible things ; constipation the rule, pale, clayey stools ; dentition diarrheas. Sinking sensations in abdomen (any time).

7. Menses premature, profuse, protracted ; < least mental excitement ; profuse leucorrhoea between periods.

8. -Conditions arising from loss of body fluids (Cinch ; Phos. ac.) especially nervous symptoms.

9. Chronic glandular enlargements and unhealthy skin ; itching eruptions, warts, small non-malignant growths, rhagades.

10. Patient very chilly ; < cold and damp ; from working in water ; 2 to 3 a.m. ; > warmth yet on getting warm is over warm ; gen. > when constipated ; >. lying painful side.

Notes. This remedy is slow in developing its action.

Chronic of Belladonna.

Keynote :
Slow Development.

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