Science is built up of facts, as a house is built of stones; but an accumulation of facts is no more a science than a heap of stones is a house.

                                                                                                                                                                                                -Henri Poincaré, Science and Hypothesis, 1905

 

Minerals

Fluorite

Pyrite

Gypsum

Azurite (w/ Malachite)

Malachite

 Amethyst

Gypsum

 Gypsum

Phylite