MINERALS INDEX

Actinolite

Albite

Allactite

Allanite

Amphibole Group

Andradite

Anglesite

Anhydrite

Anorthite

Apatite

ApatiteGroup

Apophyllite

Aragonite

Arsenates

Arsenides

Arseniosiderite

Arsenopyrite

Aurichalcite

Axinite

Azurite

Barite

Barylite

Barysilite

Bementite

Biotite

Borates

Bornite

Boroarsenates

Bustamite

Cahnite

Calamine

Calcite

Calcium larsenite

Carbonates

Celestite

Cerusite

Chalcocite

Chalcophanite

Chalcopyrite

Chloanthite

Chlorite

Chlorophoenicite

Chondrodite

Chysolite Group

Clinohedrite

Copper

Corundum

Corundum Group

Crocidolite

Cummingtonite

Cuprite

Cuspidine

Cyprine

Datolite

Desaulesite

Descloizite

Diopside

Dolomite

Edenite

Epidote

EpidoteGroup

FeldsparGroup

Ferroaxinite

Ferroschallerite

Fluoborite

Fluorite

Franklinite

Friedelite

Friedelite Group

Gageite

Gahnite

Galena

Ganophyllite

Garnet

Glaucochroite

Goethite

Graphite

Greenockite

Gypsum

Halloysite

Haloids

Hancockite

Hardystonite

Hastingsite

Hedyphane

Hematite

Hetaerolite

Heulandite

Hodgkinsonite

Holdenite

Humite Group

Hyalophane

Hydrohetaerolite

Hydrozincite

Ilmenite

Jeffersonite

Kentrolite

Larsenite

Lead

Leucaugite

Leucophoenicite

Limonite

Lollingite

Loseyite

Magnesium- chlorophoenicite

Magnetite

Malachite

Manganbrucite

Manganite

Manganosite

Marcasite

Margarosanite

Mcgovernite

Mica Group

Microcline

Millerite

Molybdenite

Mooreite

Muscovite

Nasonite

Native Elements

Neotocite

Niccolite

Norbergite

Oxides

Pargasite

Pectolite

Phlogopite

Phosphates, Arsenates and Vanadates

Prehnite

Psilomelane

Pyrite

Pyrochroite

Pyroxene Group

Pyrrhotite

Quartz

Rhodochrosite

Rhodonite

Roeblingite

Roepperite

Rutile

Scapolite

Schallerite

Schefferite

Serpentine

Serpentine Group

Siderite

Silicates

Silver

Smithsonite

Sphalerite

Spinel

Spinel Group

Stilbite

Sulphates

Sulphides and Arsenides

Sussexite

Svabite

Talc

Tennantite

Tephroite

Thomsonite

Thorite

Titanite

Tourmaline

Tremolite and Actinolite

Unconfirmed Species

Vanadates

Vesuvianite

Willemite

Xonotlite

Zeolites

Zinc schefferite

Zincite

Zircon

Zoisite

 

Marcasite

FeS2

Orthorhombic

Marcasite crystals were associated with corundum, rutile, and phlogopite in a limestone exposed during the erection of the furnace at Franklin. The crystals collected soon crumbled away, but specimens showing the remains of crystals were seen in the Hancock collection.

 

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