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The first (Mineral #1) appears translucent, although its not yet completely cleaned. Whats catching me off guard is its almost metallic (i know its not the correct wordage) skin. The skin has a different shine than the inside. The inside seems foggy and i don't know if the picture catches it, but theres three foggy columnar areas inside.
Adularescence appears in numerous other gemstones, notably common opal, rose quartz and agate.
based on conchoidal fracture, crystal structure and transparency- Mineral 1 is almost undoubtedly quartz. Should be harder than a knife point.Mineral 2- my first guess would be wolframite, based on the crystal shape and cleavage (in a quartz matrix). Can you give me any more information? Are any of the "black" crystals metallic looking? I couldn't tell from the photo? If so, what color metallic? brassy? silver? gray?Can you scratch the black mineral with a knife? Are the black crystals heavy?Where (general area) did you get the specimen?