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Diameter, mm (1mm - 0,039inch)
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  1. Index
  2. Fluorescent Minerals (UV)
  3. Datolite

Fluorescent Minerals (UV) "Datolite"

Datolite is a mineral found both in the form of aggregates and in the form of crystals. Moreover, its habitus is very diverse. The color also varies. Mined as an ore for boron. Also used in jewelry. In Russia, the best examples of collectible datolite come from Primorye.

You can see datolite stone for sale and buy it in the Minerals of Russia online store.

Physical properties of Datolite

General
Category Nesosilicate
Formula
(repeating unit)		 CaBSiO4(OH)
IMA symbol Dat
Strunz classification 9.AJ.20
Crystal system Monoclinic
Crystal class Prismatic (2/m) (same H-M symbol)
Space group P21/c
Unit cell a = 9.62, b = 7.6
c = 4.84 [Å]; β = 90.15°; Z = 4
Identification
Color Colorless or white; may be grayish, yellow, green, pale green, red, pink, etc.
Crystal habit Crystal prismatic, short to tabular; Botryoidal or globular with columnar structure; granular to compact; cryptocrystalline
Cleavage None
Fracture Conchoidal to uneven
Tenacity Brittle
Mohs scale hardness 5 to 5.5
Luster Vitreous, rarely subresinous on fracture surface
Diaphaneity Transparent to translucent, rarely opaque
Specific gravity 2.96 – 3.00
Optical properties Biaxial (-)
Refractive index nα = 1.626 nβ = 1.653 - 1.654 nγ = 1.670
Birefringence δ = 0.044
2V angle Measured: 74°
Dispersion r > v; weak
Ultraviolet fluorescence Fluoresces blue under SW UV
Calcite, Datolite
Code: 712
Calcite, Datolite
2-d Soviet mine, Dalnegorsk, Primorye, RF
46*31*27mm

0.00 $ $25.00

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