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SIZE:
3.5" x 2.8" x 1.7"
SHIPPING WEIGHT:
1.1 POUNDS
LARGE, SHARP
GEMMY DATOLITE CRYSTAL!
EYE-POPPING BLUE-GREEN COLOR!
CLASSIC LOCALITY!
POWERFUL SPIRITUAL
TOOL!
SHIPS WITHIN
24 HOURS!
What do we do to ensure COLOR ACCURACY in our photographs? |
Gorgeous bright blue-green color
Click on the pictures to see enlarged view
Lustrous, sharply terminated crystals
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Click on the pictures
to enlarge
Large 3.5" size
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DESCRIPTION
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This is an eye-catching specimen of DATOLITE - CaBSiO4 (OH) which I acquired at the TUCSON SHOW this year. This gorgeous specimen comes from the SECOND SOVIETSKY MINE in DALNEGORSK, RUSSIA. This exceptional datolite crystal has a nice GLASSY LUSTER. The color is exceptional, a lovely BLUE-GREEN that irresistably draws your eye. I purchased this specimen from one of the many Russian dealers who were set up at the Quality Inn.
The Datolite Group which is also known as the Datolite/gadolinite Group after its two most common members is composed of similarly structured nesosilicates. Its members contain alternating borate tetrahedrons, B(O, OH)4, and silicate tetrahedrons, SiO4, that are connected to each other in a sheet like structure. Between the tetrahedral sheets and linking the tetrahedral sheets are metal cations in 8 coordination. Dispite the layered structure, cleavage is all but completely absent. Some members have beryllium instead of boron in the non-silicate tetrahedrons. Several members have rare earth metals as part of their compositions. The general formula for the Datolite Group is approximately: X(B, Be)SiO4(OH, O). The X ion can be either calcium, magnesium, cerium, lanthanum, iron, tin, niobium, yttrium, ytterbium and/or erbium. |
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