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..
New Gemstone
+More..
New Mineral specimens
+More..
Recommend products
New photos
Cordierite
Name
Cordierite
Chemical
Formula
Mg2Al3(AlSi5O18)
Species
Silicates
Crystal
System
Orthorhombic
Mohs
Scale
7
Refractive
Index
1.542-1.551
Specific
Gravity
2.6