Richard C. Bostwick's 'Parker shaft minerals' exhibit.

Margarosanite (blue-white) and manganaxinite (red).

Pectolite (orange) and prehnite (pink-violet).

Margarosanite (blue-white), wollastonite (pale orange)
and minehillite (dull blue-violet).

Manganaxinite (red) clinohedrite (orange) and minor willemite (green).

Margarosanite (blue) calcite (reddish-orange) and minor willemite (green).

Margarosanite (blue-white) manganaxinite (red) and willemite (green).