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What is meant by "Specimen Grade"?

+2 votes
I noticed this under pictures of the Anorthoclase Feldspar page, specifically the two Erebus Crystals.  The two images are called out as being "Specimen Grade C".

Could you define what Specimen Grades exist and what the criteria are for each?

For example, is there an A, B, C, D etc.?
asked Aug 2, 2017 by Priceknight (180 points)

2 Answers

0 votes
For what is is worth specimen grades may differ and may refer to different things in different minerals. I suggest asking the seller to explain why it is graded the way it is. He may know. Follow up with a google search, which, may tell you more. The question is too general to be applicable.
answered Aug 3, 2017 by Weasel (58,980 points)
0 votes
If you hover your mouse pointer above the words "Specimen Grade", you'll see the following text:

Rates a specimen on a grade from A through D.

'A' describes easily obtainable and inexpensive.

'D' describes very high-end and expensive.
answered Oct 27, 2017 by hershel (52,820 points)

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