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Datolite

Introduction
 

Datolite is quite a popular mineral among collectors. The name Datolite is derived from the Greek “Dateisthai” meaning “To Divide”, in reference to the relative ease of breaking apart the raw mineral.
 

Datolite was first discovered in the Connecticut River Valley, U.S.A. in 1806.
 
Legends & Lore
 

Datolite is believed by some to build clarity of thought and concentration.
 

Just The Facts
 

Datolite is formed from Calcium Boron Silicate Hydroxide and is white, colorless, yellowish, brown, green and (rarely) orange, reddish or gray. Datolite belongs to the Datolite/Gadolinite minerals group (named after its two most common members). Members of the group include Datolite, Bakerite, Gadolinite, Hingganite and a few other rare minerals. The minerals contain alternating borate and silicate that are connected to each other in a sheet like structure.
 

Datolite occurs as discrete, vitreous crystals and as massive nodules. The massive variety actually has a cauliflower-like surface and is valued by collectors for its beauty as a lapidary material. Massive Datolite, colored by copper and other minerals, is found up to 10 inches in diameter. Such nodules range from white to red, reddish-brown, and orange (the most valuable), and are usually cut as cabochons or sliced and polished for inlay work. Pink Datolite is also called “Sugar Stone”.
 

Datolite is rarely found as a facetted gem. However, fine facet grade Datolite has been found in U.S.A., Canada and Africa. Gems over 20 Carats are extremely rare.
 


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