Term
| Olivine Crystal Arrangement |
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Definition
| Isolated Crystal Arrangement |
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Term
| Pyroxene Crystal Arrangement |
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Definition
| Single Chain Crystal Arrangement |
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Term
| Amphibole Crystal Arrangment |
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Definition
| Double chain Crystal Arrangement |
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Definition
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Definition
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Definition
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Term
| What are the six main families of silicate minerals? |
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Definition
(in order of silica content from lowest to highest)
Olivines, Pyroxines, Amphiboles, Micas, Feldspars, and Quarts
Mnemonic: Obese Peculiar Amphibians Mummify Fruit Quietly |
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Term
| Silica Content of Olivines |
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Definition
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Term
| Silica Content of Pyroxenes |
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Definition
| Second Lowest Silica Content |
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Term
| Silica Content of Amphiboles |
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Definition
| Third Lowest Silica Content |
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Term
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Definition
| Third highest silica content |
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Term
| Silica content of feldspars |
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Definition
| second highest silica content |
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Term
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Definition
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Term
| melting point of olivines |
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Definition
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Term
| melting point of pyroxenes |
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Definition
| second highest melting point |
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Term
| melting point of amphiboles |
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Definition
| third highest melting point |
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Term
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Definition
| third lowest melting point |
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Term
| melting point of feldspars |
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Definition
| second lowest melting point |
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Definition
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Term
| What is the color of Olivines and are they ultramafic, mafic, or felsic |
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Definition
| Olivines are green (like an olive) and they are ultramafic |
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Term
| what is the color of pyroxenes and are they ultramafic, mafic, or felsic? |
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Definition
| Pyroxenes are dark colored and they are mafic |
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Term
| What is the color of amphiboles and are they ultramafic, mafic, or felsic? |
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Definition
| Amphiboles are generally dark colored but can range in color from colourless to white, green, brown, black, blue, or lavender and they are mafic. |
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Term
| What color are micas and are they ultramafic, mafic, or felsic? |
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Definition
| Micas are dark to light in color and they are mafic |
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Term
| what is the color of feldspars and are they ultramafic, mafic, or felsic? |
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Definition
| Feldspars are light colored and felsic |
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Term
| What is the color of quarts and is it ultramafic, mafic, or felsic? |
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Definition
| Quarts is light in color and is felsic. |
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Term
| List the six silicate mineral families in order of density from least dense to most dense |
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Definition
| Olivines, Pyroxenes, Amphiboles, Mica, Feldspars, Quarts |
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Term
| Would a mafic mineral be more likely to be high in Fe+/Mg content or K+/Na content? |
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Definition
| Fe+/Mg content (think basalt coming out of the asthenosphere/mantle also think high melting point of mafic = deeper in the earth |
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Term
| Would a felsic mineral be more likely to be Fe+/Mg rich or K+/Na rich? |
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Definition
| K+/Na rich, differentiate by knowing that something iron/magnesium rich would have a higher melting point and would be mafic |
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