Blue
Yellow, White, Brown, Red
Leo, Gemini, Capricorn, Leo, Gemini, Capricorn, Leo, Gemini, Capricorn, Leo, Gemini, Capricorn, Leo, Gemini, Capricorn, Leo, Gemini, Capricorn, Leo, Gemini, Capricorn, Leo, Gemini, Capricorn
Not Available
Not Available
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle