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Index of Mineral Help pages
Examples of Complex Searches
Example: "luster-metallic" or "luster-sub met*" "streak-gray" "lead-4*" finds all metallic minerals with a gray streak containing 40.0% to 49.9% of lead.
Example: "density-2.6*" "hardness-3*" "luster-vitreous" "color-white" or "color-colorless" for all white, vitreous minerals that have a hardness of 3 to 3.5 and a density of 2.6 to 2.69
Example: "sodium-3" "biaxial" "cleavage-00*" finds all biaxial minerals with a basal cleavage with 3 to 3.99% sodium.
Example: "luster-adamantine" "color-yellow" "cleavage-none" finds all yellow minerals with no cleavage and an adamantine luster.
Example: "iron-3" barium cerium finds all minerals with 3 to 3.99% iron containing cerium and barium.
Example: "intensity-o-3.5*" boron finds all minerals containing boron with the most intense x-ray d-spacing of 3.5 to 3.599 angstroms.
Example: biaxial-a1.7* bire-0.015* pleochroism "pale blue" finds all biaxial minerals with the lowest index of refraction from 1.7 to 1.799, a birefringence of 0.0150 to 0.0159 and a pale blue pleochroism.