mineral specimens
rare minerals
mineral dealer
systematic minerals
Black Hills minerals
fine minerals
mineral dealer
Dana minerals
IMA minerals
mineral collections
rock and minerals
gem crystal
0 item @ $0.00  

Mineralpedia Details for Bystrite

Reset

Bystrite

Bystrite

Named for the type locality at the Malo-Bystrinskoe lazurite deposit in the Lake Baikal area of the Eastern Siberian Region in Russia. This is the only locality for Bystrite. It occurs in a lazurite deposit with, additionally, calcite and diopside. Tabular crystals in as irregular grains and aggregates, usually a deep yellow color with a vitreous luster.

Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/bystrite.pdf

Formula
(Na,K,Ca)8(Si6Al6)O24S1.5·H2
Crystal System
Trigonal 
Crystal Habit
Tabular, Irregular Grains 
Cleavage
Good, Poor, None 
Luster
Vitreous (Glassy) 
Color
yellow 
Streak
light yellow 
Class
Trigonal - Ditrigonal Pyramidal 
Hardness
WebMineral
View Bystrite 
Mindat
View Bystrite 

Bystrite from Malaya Bystraya deposit, Tunka Valley, Baikal area, Siberia, Russia

Bystrite
            from Malaya Bystraya deposit, Tunka Valley, Baikal area, Siberia, Russia

Minute yellow grains to about 0.75mm.

Click thumbnail images for larger view.

Bystrite from Sludyanka, Lake Baikal area, Prebaikalia, Siberia, Russia

Bystrite
            from Sludyanka, Lake Baikal area, Prebaikalia, Siberia, Russia
Special Info
Type & Only Locality

Originally labeled as Tounkite, but actually yellow Bystrite grains with bright blue Lazurite. It is sawed on one side. Bystrite is a member of the Cancrinite group. Very rare one locality mineral.

Click thumbnail images for larger view.

All photos by Dakota Matrix and are Copyrighted © and may not be used without permission. Copyright © 2023 - Dakota Matrix Minerals, Inc. Privacy | Terms & Conditions | Site Map