mineral classics

prehnite

beryl

spodumene (577 grams) (doubly terminated)

prehnite finger cast after anhydrite

prehnite finger cast after anhydrite

prehnite finger cast after anhydrite

spinel on matrix

spinel (ruby spinel) ("floater")

paratacamite with malachite

calcite (variety: manganoan)

vivianite (notably "bent" crystals)

natrolite (rare crystallized specimen!!)

opal-an (hyalite opal) with carbonate-rich fluorapatite (var: staffelite)

tourmaline

fluorapatite ("floater")

opal (pink and lavender)

fluorite on quartz

afghanite

ametrine (natural bi-color quartz)

brookite (incredibly rare, faceted stone)