Cave Calcium

Calcium is in stalactites and stalagmites formed due to hard water, which contains dissolved calcium bicarbonate, that filters through the ground and reaches a cave and then precipitates outward.

Calcium:Part of All Life

  • Essential to all living things, mainly for growth of healthy teeth and bones.
  • Calcium phosphate is the main component of bone.
  • The average human contains about 1 kilogram of calcium.
Stones & Gems containing Calcium
Fact: Calcium comes from the Latin word "calx" meaning lime discovered by Humphry Davy in 1808.
  • Element 20
  • Has atomic mass of 40.078 or 40.08
  • Melting point -842°C, 1548°F, 1115 K
  • Boiling point 1484°C, 2703°F, 1757 K
  • Density (g cm−3) 1.54

Everyday Uses of Calcium

  • calcium sulfate (gypsum) is used by builders as a plaster and by nurses for setting bones
  • Calcium metal is used as a reducing agent in preparing other metals such as thorium and uranium.
  • It is also used as an alloying agent for aluminium, beryllium, copper, lead and magnesium alloys.


Created with images by marliese - "stalactite cave stalactites stalagmites" • 1045373 - "cave stalactite stalactites" • ChadoNihi - "snail mollusc crawling" • alusruvi - "fluorite fluorspar glass gloss" • James St. John - "Glendonite (Conjola Formation, Lower Permian; coastal outcrop at Dolphin Beach, just southwest of Ulladulla, coastal New South Wales, far-southeastern Australia)" • alusruvi - "fluorite fluorspar glass gloss" • NOAA Photo Library - "fish2793" • alusruvi - "fluorite fluorspar glass gloss" • James St. John - "Folded gyprock (Castile Formation, Upper Permian; State Line outcrop, southern Eddy County, New Mexico, USA) 6"

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