Hello Gents, List
To my best recollection, the decimal value is not a scale from 3 to 4,
such that 3.5 is half way would be between the two grades. It is an
index for another characteristic peculiar to feldspathic minerals , I
believe.
The value after the decimal (e.g. 3.X, 3.5, 3.7 etc.)
No, it's simple. The decimals divide petrologic type 3 into ten finer
divisions. They are meant to convey a sense of relative metamorphic grade,
just as the original 3-4-5-6 numbers did. The reason this was done for
type 3 and not for 4-5-6 is that the differences between a low-type-3 (now
, March 13, 2003 8:31 PM
Subject: Re: [meteorite-list] Re: Petrologic types and point values
No, it's simple. The decimals divide petrologic type 3 into ten finer
divisions. They are meant to convey a sense of relative metamorphic
grade,
just as the original 3-4-5-6 numbers did. The reason
Grossman [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Thursday, March 13, 2003 8:31 PM
Subject: Re: [meteorite-list] Re: Petrologic types and point values
No, it's simple. The decimals divide petrologic type 3 into ten finer
divisions. They are meant to convey a sense of relative metamorphic
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