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Streak: Hematite and Malachite

Streak is the color of a mineral powder. In many cases the apparent body color of a mineral is very different from its powder. Black hematite (left in photo) has a red streak. The green streak of malachite (right), however, is similar to its body color. A 'streak plate' is a hard porcelain tile that mineralogists typically use to create a powder when a mineral specimen is rubbed against it.
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Título:
Streak: Hematite and Malachite
Descripción: Ver traducción automática
Streak is the color of a mineral powder. In many cases the apparent body color of a mineral is very different from its powder. Black hematite (left in photo) has a red streak. The green streak of malachite (right), however, is similar to its body color. A 'streak plate' is a hard porcelain tile that mineralogists typically use to create a powder when a mineral specimen is rubbed against it.
Crédito:
Album / Science Source / JOEL AREM
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Modelo: No - Propiedad: No
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Tamaño imagen:
3818 x 2550 px | 27.9 MB
Tamaño impresión:
32.3 x 21.6 cm | 12.7 x 8.5 in (300 dpi)
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