Monument No. 2 Mine, Monument No. 2 channel, Yazzie Mesa, Cane Valley Mining District, Apache County, Arizona, USA (original) (raw)

Description: As a constituent of dark, unoxidized U-V ores; also in tabular bodies in sandstone-filled, paleo-stream channels or scours. Fills interstices in sandstone & conglomerate.

ⓘ Corvusite

Formula: (Na,K,Ca,Mg)2(V5+,V4+,Fe2+)8O20 · 6-10H2O

ⓘ Doloresite

Formula: V4+3O4(OH)4

Colour: Chocolate-brown

Description: Crystals & bladed masses with satin-like cleavage surfaces; a small, vuggy seam of crystakls from a fossil log.

ⓘ Fernandinite

Formula: (Ca,K)(V5+,V4+,Fe2+)8O20 · 10H2O

Description: Occurs with doloresite & other oxidized vanadium minerals.

ⓘ Fervanite

Formula: Fe3+4V5+4O16 · 5H2O

Description: Occurs in a Triassic fossilized tree.

ⓘ Fluorapatite

Formula: Ca5(PO4)3F

Description: A single pebble in conglomerate. Believed associated with bone matter.

ⓘ Fluorapatite var. Carbonate-rich Fluorapatite

Formula: Ca5(PO4,CO3)3(F,O)

Description: A single pebble in conglomerate. Believed associated with bone matter.

ⓘ Fourmarierite

Formula: Pb(UO2)4O3(OH)4 · 4H2O

Colour: Reddish

Description: Small grains in uraninite with schoepite & becquerelite.

ⓘ Galena

Formula: PbS

Description: Occurs as small crystals & irregular grains in uraninite.

ⓘ 'Gummite'

ⓘ Gypsum

Formula: CaSO4 · 2H2O

Colour: White

Description: Powdery material associated with metazeunerite in conglomerate.

ⓘ Gypsum var. Selenite

Formula: CaSO4 · 2H2O

ⓘ Hewettite

Formula: CaV6O16 · 9H2O

Habit: Moderately abundant individual crystals to 15 mm long & 0.5 mm thick

Description: Also occurs as cross-fibrous seams & in crusts to 10 cm thick.

ⓘ Ilsemannite

Formula: Mo3O8 · nH2O

Description: Dispersed, powdery, fine-grained material.

ⓘ Jarosite

Formula: KFe3+3(SO4)2(OH)6

Description: Occurs in Shinarump Conglomerate; fills interstices in medium- to coarse-grained starta of the Shinarump member.

ⓘ Kaolinite

Formula: Al2(Si2O5)(OH)4

Description: Associated with U-V ores.

ⓘ 'Limonite'

ⓘ Metahewettite

Formula: CaV6O16 · 3H2O

Description: Principal ore mineral in a channel in the DeChelly Sandstone that is filled by Shinarump Conglomerate; as an impregnation of the sandstone & as replacement of fossil plant matter.

ⓘ Metarossite

Formula: Ca(V2O6) · 2H2O

ⓘ Metatyuyamunite

Formula: Ca(UO2)2(VO4)2 · 3H2O

Description: Forms a thick zone around the dark, resinous material that is matrix for small grains of uraninite with tyuyamunite.

ⓘ Metazeunerite

Formula: Cu(UO2)2(AsO4)2 · 8H2O

Description: Occurred in a small pocket 1 foot by 2 to 3 feet diameter; impregnations.

ⓘ Montmorillonite

Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O

Description: Associated with U-V ores.

ⓘ Montroseite

Formula: (V3+,Fe3+)O(OH)

Habit: Shiny crystals to 0.5mm long

Colour: Black

Description: Occurs with pyrite as shiny dark crystals & masses (South ridge).

ⓘ Navajoite (TL)

Formula: Fe3+V5+9O24 · 12H2O

Type Locality:

Colour: Dark brown

Description: Occurs as silky to fibrous, minute columns normal to fracture surfaces in channel fillings in Shinarump Conglomerate with secondary U-V minerals.

ⓘ Opal

Formula: SiO2 · nH2O

Colour: White, pale green, gray

Description: As fillings in intersticial spaces in corvusite-type orebody sandstone & botryoidal incrustations to 5 mm thick.

ⓘ Opal var. Opal-AN

Formula: SiO2 · nH2O

ⓘ Paramontroseite

Formula: V4+O2

Habit: Shiny crystals to 0.5 mm

Colour: Black

ⓘ Pascoite

Formula: Ca2Ca(V10O28) · 17H2O