“A rather sharp hexagonal blue gray triphylite crystal with a bit of attached quartz and mica matrix. Got the specimen from James Zigras. The scale under the specimen is an inch with a rule at one cm.”
“A rather sharp hexagonal blue gray triphylite crystal with a bit of attached quartz and mica matrix. Got the specimen from James Zigras. The scale under the specimen is an inch with a rule at one cm.”