From: Golden, Joshua J - (jgolden) Sent: Wednesday, January 27, 2016 19:25 To: Robert Hazen Cc: ,; Ma, Xiaogang Subject: 2d KLEE diagram for Co minerals Attachments: Co_2d_klee_minerals-20150115.xlsx; Co_2d_Klee-minerals- 20160115.txt Flag Status: Flagged Dear Bob and Marshall, I have attached a 2d KLEE diagram for Cobalt minerals as two files, an xlsx, which I will discuss in the remainder of the email, and a tab delimited test file, which is the raw unsorted data. I don't consider this the final version but I just wanted to pass it along . What you will see in the xlsx file is the list of the 66 Co minerals on the X (row 1) and Y (Column A) axes. The data is sorted a couple of ways, first they are grouped by primary minerals (light green) and secondary minerals (no color), then they are sorted by 1st occurrence. I tried to color the cells based on the value gradiating from red (0) to green (highest number), but excel does not do this very well. Marshall, perhaps you could provide a way to sort this data on other parameters using the interface you are developing (maybe by oxidation state?). Eventually, I should be able to include 3d data for this mineral vs mineral diagram. In the 1st quadrant you will see primary minerals vs. primary minerals, in the 2nd quadrant you will see the secondary minerals vs. the primary minerals. The 3rd quadrant is located beneath the 1st quadrant and it contains the reflection of the 2nd quadrant (i.e. primary vs. secondary). The 4th quadrant is located beneath the 2nd quadrant and contains the secondary minerals vs. the secondary minerals. The diagram of the quadrants where P is primary and S is secondary follows: The numbers in the cells represent the number of localities at which both of the minerals occur. In the second quadrant there is an interesting pattern with groups of primary minerals that first occurred at 3.6Ga, 2.7Ga, and 675 and there affinity of occurring with a wide variety of secondary minerals. Also in the second quadrant the secondary minerals that first occurred at 2.5-2.2Ga, 1.9Ga, 600Ma, and 387-354Ma occur with a wider variety of primary minerals. These ranges seem to correlate to the assembly periods of the supercontinents, except for the 2.5-2.2 which corresponds the stable period of Kenorland, the 3.6 Ga corresponds to the end of "stage 4" in mineral evolution, and the 675Ma corresponds to the breakup of Rodinia. Another thing I noticed is that there are several secondary minerals that apparently do no occur at the same locality as a primary mineral. Perhaps this is a result of the way that mindat's localities are divided. Though, I checked the karpenkoite locality and the next level above that locality to see if any nearby localities had a primary mineral, but none did, however, three nearby localities had cobaltomenite which is another secondary mineral. Hope you find this data as interesting as I have. I'm sure there is still more to see! Bob, I look forward to seeing you next week for the Gem Show and meeting with Jolyon. With best regards, Josh