Calcium vs Druse - What's the difference?
calcium | druse |
A chemical element, atomic number 20, that is an alkaline earth metal and occurs naturally as carbonate in limestone and as silicate in many rocks.
* {{quote-magazine, year=2013, month=September-October, author=
, magazine=(American Scientist), title= (countable) An atom of this element.
(mineralogy) An inner surface with a crust of tiny crystals.
* 1889 , Dana et al'', ''A System of Mineralogy
* 1984 , Science Reports of the Tohoku University
(botany) An aggregation of calcium oxalate crystals found in certain plants.
(ophthalmology) A tiny yellow or white accumulation of extracellular material that builds up in Bruch's membrane of the eye.
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As nouns the difference between calcium and druse
is that calcium is calcium while druse is .calcium
English
Noun
(wikipedia calcium) (Symbol'': ''Ca )Katie L. Burke
In the News, passage=Oxygen levels on Earth skyrocketed 2.4 billion years ago, when cyanobacteria evolved photosynthesis:
Derived terms
* bismuth strontium calcium copper oxide * calc-, calci- * calcic * calcio- * * * * * * * * calcium arsenate * calcium carbide * calcium carbonate * calcium chloride * calcium cyanamide * calcium dihydrogen phosphate * calcium fluoride * calcium hydride * calcium hydroxide * calcium light * calcium magnesium carbonate * calcium magnesium silicate * calcium nitrate * calcium oxide * calcium peroxide * calcium phosphate * calcium phosphide * calcium platinate * calcium sulfate, calcium sulphate * calcium sulfide, calcium sulphide * calcium tungstate * dicalcium * monocalcium * oxycalcium * tricalciumReferences
External links
See also
* chalk * lime * limestone ----druse
English
Noun
(en-noun)- Occurs as a fine coating over the minerals in druses or cavities in the granite.
- A lot of druses are found in the vein, and euhedral crystals of quartz, marcasite and sphalerite are observed as druse minerals.