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Found quartz like crystal plate, Striations and crystal pattern diffrent on entire plate. Could not identify

+1 vote

Thease crystals have multiple growth points like pyramid. All crystals quartz  have same growth pattern looks very interesting. Layer are formed very clear. 

asked Mar 18, 2017 by santoshmlokhande (850 points)
edited Mar 28, 2017 by santoshmlokhande

2 Answers

0 votes
To me, this looks like a zeolite or calcite. Zeolites are known for amazing crystal structure that can vary greatly over each specimen. If you are sure this is quartz, then I would guess this was formed under odd metamorphic pressure that caused the crystal faces to form in this shape.
answered May 1 by linkisnotzelda (5,240 points)
0 votes
The structure and striation formation indicate more like quartz than calcite. I'd suggest trying to do a hardness test. Or see if it reacts to weak acid such as vinegar, which can rule out calcite (quartz won't be affected by most acids.)
answered Jun 5 by hershel (51,840 points)