
Image: <a rel="nofollow" class="external text" href="http://www.mindat.org/user-13767.html#0">John Krygier</a> (Public domain)
monocliniccommonSilicates
Tremolite
Ca2Mg5Si8O22(OH)2
This specimen features a mass of white to pale gray tremolite crystals, exhibiting a 'glimmery' appearance and forming criss-crossing aggregates.
Tremolite Physical Properties
Mohs Hardness
5Crystal System
monoclinicLuster
vitreousStreak Color
whiteCleavage
Perfect on {110} at 56 and 124 degreesFracture
unevenSpecific Gravity
2.9Colors
white, gray, pale green, colorlessTransparency
translucentType Locality
Balmat, Balmat-Edwards Zinc District, St. Lawrence County, New York, USAMineral Group
SilicatesUses
collector, scientific_researchAssociated Minerals
calcite, dolomite, diopside, talc, quartzRarity
commonGeological Context
Tremolite is a common metamorphic mineral, typically forming in metamorphosed dolomitic limestones or ultramafic rocks under medium-grade metamorphic conditions.