𝐍𝐨𝐫𝐭𝐡𝐰𝐞𝐬𝐭 𝐀𝐟𝐫𝐢𝐜𝐚 𝟏𝟑𝟔𝟖𝟑. Rumuruti chondrite (R3-6). Complet specimen (91.7g)
23/07/2022𝐌𝐮𝐫𝐜𝐡𝐢𝐬𝐨𝐧 𝐦𝐞𝐭𝐞𝐨𝐫𝐢𝐭𝐞. CM2 with pre-solar grains. Endcut. (155.5g)
12/11/2022𝐍𝐨𝐫𝐭𝐡𝐰𝐞𝐬𝐭 𝐀𝐟𝐫𝐢𝐜𝐚 𝟏𝟑𝟔𝟖𝟑. Rumuruti chondrite (R3-6). Complet specimen (126.5g)
444,00€
Found in Adrar, Algeria
Type: Rumuruti chondrite (R3-6)
Weight: 126.5 g
1 in stock
SKU: VIP0334
Categories: CHONDRITES, NWA 13683 (R3-6)
𝑵𝒐𝒓𝒕𝒉𝒘𝒆𝒔𝒕 𝑨𝒇𝒓𝒊𝒄𝒂 𝟏𝟑𝟔𝟖𝟑. 𝐑𝐮𝐦𝐮𝐫𝐮𝐭𝐢 𝐜𝐡𝐨𝐧𝐝𝐫𝐢𝐭𝐞 (𝐑𝟑-𝟔)
Rumuruti chondrites (also known as R chondrites) are a very rare type of chondrites. Less than 0,5% of chondrites are classified as R. There was only one observed fall of an R chondrite that left a single piece of just 67 grams.
They differ from ordinary chondrites mainly in having most of the metal in the form of sulfides, they are more oxidized and contain little metallic Iron and Nickel. They have a matrix with more dust (about 50%), a higher trace element concentration of Zinc and Selenium and a higher Oxygen-17 ratio than ordinary chondrites. Implanted solar wind is found in more than half of the R chondrites analyzed for noble gases until today.
Apparently, R chondrites come from an asteroid’s regolith (surface with loose solid materials). They are called “R” after the Rumuruti meteorite, which fell on 28th January 1934 in the Rift Valley, Kenya.
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Weight | 126,5 g |
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