Showy specimen of the uncommon halide, sal ammoniac, from the 1990 find in Tajikistan. The grayish-white, translucent and lustrous crystals form a very attractive three-dimensional aborescent shape, like branching frost on your window.
Formula :
NH4)Cl
System: Hardness:1-2 Rarity:very rare
Strunz id:III/B.2-30 -
HALOGENIDES
Name origin: From the Greek κρυπτός, concealed, and άλς, salt, in allusion to its intimate mixture with salammoniac in the type locality occurrence.
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 Specimen weight:8 gr.
 Crystal size:Up to 1,0 tall
 Overall size: 45mm x 28 mm x 20 mm
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