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More model informationThis is a 10 cm long sample of hornblende. One of the key properties for identifying hornblende is the angle between the two main cleabages. That angle is about 60 and 120 deg – best scene near annotation notes #1 and #2. (In contrast, dark colored pyroxene, which otherwise might be confused with hornblende has cleavage angles near 90 deg.) Masked bg, highest setting alignmnet, dense cloud high, standard for others.
CC AttributionCreative Commons Attribution
Jul 23rd 2019
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