• Register

Information for users from the old Q&A site
If you have an account from our old Q&A site, your account was transferred over, but you need to reset your password and confirm your email address.
Reset Password here
Confirm Email here

2,140 questions

3,745 answers


16,532 users

sardius or ?

0 votes

Dear Sirs,

We have found a new mineral which identify as following

Specific gravity :2.58 -2.64 Hardness : 7.5 - 8.0 Mohs scale Mineral : mainly Sio2 Color : dark brown, reddish brown to yellow, white,grey, black some green and blue. Formation : in lump form, some very big with multicolor,did not find any geodes, only like stones. It is translucent,semi, and opaque. Local classified as Chalcedony but we its hardness does not match its describtion. Would appreciated very much if you can clear the doublt.

Thank youalt text

asked Dec 29, 2012 by morgan99 (120 points)

1 Answer

0 votes

Hi, That is an odd combination, as silica will generally be around 7 or less. Did you analytically observe its chemical makeup? Do you have any pictures to post on this? Also any data you can provide which will explain how you attained those properties will be helpful.

answered Jan 1, 2013 by hershel (51,320 points)