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
Fluorite
Calcite
Mica
Stilbite
Topaz
Hemimorphite
Aquamarine
Pyrites
Babingtonite
Prehnite
Epidote
Sphalerite
Agate
Opal
Limonite
Hematite
Chabazite
Rhodochrosite
Laumontite
Helvite
Galena
Barite
stibnite
Chalcopyrite
Pyromorphite
Scheelite
Molybdenite
Bournonite
Wolframite
Tourmaline
Cerussite
Emerald
Corundum
Psilomelane
Spinel
The most popular
  Home  >>  Mineral Encyclopedia  >>  Mineral Photos  >>  Samarskite-Samarskite
Samarskite
Chemical
Formula
 (YFe3+Fe2+U,Th,Ca)2(Nb,Ta)2O8
Species
 Oxides & Hydroxides
Crystal
System
 Orthorhombic
Mohs
Scale
 5-6
Color
 Black, may have a brownish tint, brown to yellowish brown due to alteration; light to dark brown in transmitted light
Streak
 Reddish brown
Luster
 Vitreous - resinous
Refractive
Index
 n = 2.1–2.2
Diaphaneity
 Opaque, transparent in thin fragments
Cleavage
 , indistinct
Fracture
 Conchoidal fragments
Crystal Habit：Crystals elongated with pyramidal terminations; commonly granular to massive
Samarskite9045
Samarskite9045
Samarskite9044
Samarskite9044
Samarskite9043
Samarskite9043
Samarskite9042
Samarskite9042
Copyright© 1999-2021 ChinaNeolithic.Com Copyright; The people's Republic of ICP registration / license:ICP.14062907. YueGongAnBei 44051102000467