God for us to design products, we are the porters of nature!

Home　|　Mineral Specimens　|　Gem materials　|　Mineral Datum　|　Rock　|　News　|　Photos　|　Contact Us
Welcome, please login, or click here to register!
Dominant species
+More..
Quartz
Feldspar
Garnet
Calcite
Fluorite
Mica
Stilbite
Topaz
Hemimorphite
Babingtonite
Pyrites
Prehnite
Aquamarine
Pyromorphite
Epidote
Sphalerite
Agate
Opal
Chabazite
Rhodochrosite
Laumontite
Limonite
stibnite
Galena
Barite
Tourmaline
Scheelite
Hematite
Chalcopyrite
Wolframite
Bournonite
Cassiterite
Psilomelane
Emerald
Cassiterite
Dolomite
Apophyllite
Helvite
The most popular
  Home  >>  Mineral Encyclopedia  >>  Mineral Photos  >>  Tephroite-Tephroite
Tephroite
Chemical
Formula
 Mn2SiO4
Species
 Silicates
Crystal
System
 Orthorhombic
Mohs
Scale
 6
Specific
Gravity
 3.87-4.12
Color
 Olive-green, bluish green, gray, °esh-red, reddish brown; pale green in thin section, may be colorless
Streak
 Pale gray
Luster
 Vitreous, Greasy
Refractive
Index
 n = 1.759 n = 1.797 n = 1.860
Diaphaneity
 Translucent
Cleavage
 Distinct/GoodDistinct on Imperfect on
Fracture
 Irregular/Uneven, Conchoidal
Crystal Habit：Crystals typically short, prismatic, to 4 cm, or anhedral, equidimensional. Commonly in disseminated grains, compact, or massive.
Geological Setting：In Fe-Mn ore deposits, skarns, and metamorphosed manganese rich sediments.
Tephroite1936
Tephroite1936

The total Photo is 33     Page 2         
 
         2 Pages    32 Photo/Page
1
2
Copyright© 1999-2021 ChinaNeolithic.Com Copyright; The people's Republic of ICP registration / license:ICP.14062907. YueGongAnBei 44051102000467