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'Adularia'  | |
| | Description: | Occurs where K-feldspar porphyoblasts in schist are fractured and exposed in the walls of prehnite veins. Occurs as wedge shaped overgrowths on the porphyroblasts. | | Reference: | [K. Wood collection] |
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'Albite-Anorthite Series' | |
| | Reference: | [Gems and Minerals of America-Jay Ellis Ransom-1974] |
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'Allanite' | |
| | Habit: | Slender prisms,much like epidote crystals. Aspect ratio usually about 8:1 | | Colour: | very dark brown to black | | Description: | Euhedral to highly corroded crystals occur in ankerite veins. Large crystals to 30cm encountered once in a large muscovite-class pegmatite on a new part of bench 2 in 2000. ID questionable due to poor XRD pattern. Possibly partly metamict. | | Reference: | [K. Wood collection] |
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Almandine | |
| | Habit: | trapezohedrons with tetrahexahedral modifications | | Colour: | red, reddish purple | | Description: | Ubiquitous as a rock-forming mineral in schists. Uncommon as well-formed crystals in ankerite veins. | | Reference: | [K. Wood collection] |
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Ankerite  | |
| | Habit: | rhombohedrons, cleavage masses | | Colour: | white when fresh, rust colored when weathered | | Fluorescence: | none | | Description: | Common as cleavage masses filling certain veins, rarely found as euhedral crystals in vugs within similar veins. | | Reference: | [K. Wood collection] |
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'Apatite' | |
| | Reference: | [Gems and Minerals of America-Jay Ellis Ransom-1974] |
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Apatite-(CaF) | |
| | Habit: | Hexagonal prisms | | Colour: | white | | Description: | Slender, clear, prismatic crystals to 4mm occur rarely in association with rutile pseudomorphs of ilmenite in ankerite veins. | | Reference: | [K. Wood collection] |
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'Apophyllite' | |
| | Habit: | prisms with pyramids | | Colour: | White, pink | | Fluorescence: | none | | Description: | Occurs uncommonly as white crystals in prehnite veins associated with zeolites. Also occurred as pink crystals (with the one-time find of kainosite crystals) in association with calcite and chlorite. | | Reference: | [K. Wood collection] |
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'Asbestos' | |
| | Reference: | [Gems and Minerals of America-Jay Ellis Ransom-1974] |
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Asbolane | |
| | Reference: | [J.H.Pratt,1907,NCGS Economic Paper No.11,The Mining Industry in North Carolina During 1905] |
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Babingtonite | |
| | Colour: | Black | | Description: | Sharp to crude crystals to 1cm occur sparsely in prehnite veins. | | Reference: | [K. Wood collection] |
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Beryl | |
| | Reference: | [No reference listed] |
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Biotite | |
| | Habit: | anhedral to subhedral grains and crystals | | Colour: | brown, black | | Fluorescence: | none | | Description: | Ubiquitous as a rock-forming mineral. Also present as crude blades in ankerite veins. | | Reference: | [K. Wood collection] |
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Calcite | |
| | Habit: | Platy in stilbite veins, rarely scalenohedral; pseudocubic or massive in prehnite veins; rhombic or massive in ankerite veins | | Colour: | white; yellow to white in prehnite veins | | Fluorescence: | variable, occassionally red | | Description: | A variety of habits, but few good specimens. Some angel-wing habit with stilbite coatings. Present in a variety of environments. | | Reference: | [K. Wood collection] |
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'Chabazite' | |
| | Habit: | Typical pseudocubic crystals | | Colour: | White in prehnite veins. Yellow in joints in schist. | | Fluorescence: | none | | Description: | Uncommon constituent of prehnite veins. Crystals to 1.2cm have been observed. | | Reference: | [K. Wood collection] |
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Chalcopyrite | |
| | Description: | Minor associate of massive pyrrhotite occurrences within ankerite veins. | | Reference: | [K. Wood collection] |
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'Chlorite Group' | |
| | Habit: | sugary, or as curly hair-like crystals enclosed in calcite within ankerite veins. Rock-forming mineral adjacent to prehnite veins. | | Colour: | dark green to black, also grayish green | | Fluorescence: | none | | Description: | The curly crystals in calcite can only be exposed by acid etching. They are very fragile. | | Reference: | [K. Wood collection] |
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Corundum | |
| | Reference: | [Gems and Minerals of America-Jay Ellis Ransom-1974] |
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Epidote | |
| | Colour: | Dark green as crystals, pistachio green when massive. | | Fluorescence: | none | | Description: | Present only in or near prehnite veins. Occurs as druses of 0.5-1.0 mm crystals or as thin layers of massive material. | | Reference: | [K. Wood collection] |
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'Feldspar Group' | |
| | Reference: | [U.S Bureau of Mines/Spatial Data from the Minerals System/Mineral Industry Location System(Mas/Mils)CD-Rom,Sep,1995] |
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Fluorite | |
| | Habit: | Octahedral | | Colour: | purple to black | | Fluorescence: | none | | Description: | Occurs with epidote crystals as crystals to 0.5mm. | | Reference: | [K. Wood collection] |
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'Garnet Group' | | X | | Z | | (TO | | ) | | (X = Ca, Fe, etc·, Z = Al, Cr, etc·, T = Si, As, V) |
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| | Reference: | [No reference listed] |
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Gold | |
| | Reference: | [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.] |
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Graphite | |
| | Reference: | [Genth,F.A and Kerr,W.C,1881,Minerals and Mineral Localities of North Carolina,Geologic Survey] |
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Halloysite | |
| | Reference: | [Charles E.Hunter and Lewis J.Hash,1949,Halloysite Deposits of Western North Carolina,Bulletin # 58] |
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Hematite | |
| | Reference: | [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.] |
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'Heulandite' | |
| | Habit: | Typical crystals with coffin shape | | Colour: | white | | Fluorescence: | none | | Description: | Rare constituents of prehnite veins in crystals to 4mm. | | Reference: | [K. Wood collection] |
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Heulandite-Ca | |
| | Reference: | [Kenny Gay - North Carolina Geological Survey] |
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'Hornblende' | |
| | Reference: | [Gems and Minerals of America-Jay Ellis Ransom-1974] |
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Ilmenite  | |
| | Habit: | Thin platy crystals with very high width:thickness ratios; pyramidal modifcations on edges. | | Colour: | Dark charcoal gray | | Fluorescence: | none | | Description: | Typically enclosed in ankerite which can be removed with acid. Lustrous crystals are not uncommon. They are brittle and difficult to trim once etched. | | Reference: | [K. Wood collection] |
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Kainosite-(Y) | |
| | Habit: | Prismatic crystals to 18mm. Typical aspect ratio 5:1 | | Colour: | Light brown, sometimes with faint iridescent coating. | | Fluorescence: | none | | Description: | Occurred in a one-time find where ankerite veins intersected a pegmatite containing large (to 25cm) crude allanite crystals. Vein fluids apparently reacted with K-Feldpsar in the pegmatite, forming crystalline muscovite with sparse kainsoite crystals. | | Reference: | [K. Wood collection] |
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Kaolinite | |
| | Reference: | [Gems and Minerals of America-Jay Ellis Ransom-1974] |
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Kyanite | |
| | Reference: | [J.Robert Butler,1984,Map showing Paleozoic Metamorphic Facies, NCGS] |
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Laumontite | |
| | Habit: | Acicular crystals with typical "hypodermic" terminations | | Colour: | Clear colorless when fresh | | Fluorescence: | none | | Description: | Common in stilbite veins, less common in prehnite veins. Crystals to 5mm. | | Reference: | [K. Wood collection] |
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Limonite | |
| | Reference: | [Gems and Minerals of America-Jay Ellis Ransom-1974] |
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Magnetite | |
| | Habit: | Octahedrons, also crude indistinct crystal masses | | Colour: | Dark charcoal gray | | Fluorescence: | none | | Description: | One nice 1mm octahedron found on epidote. Crude indistinct crystal masses found rarely in ankerite veins. May be present as a rock-forming mineral in schists. | | Reference: | [K. Wood collection] |
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Mesolite | |
| | Reference: | [www.mcrocks.com] |
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'Mica Group' | |
| | Reference: | [U.S Bureau of Mines/Spatial Data from the Minerals System/Mineral Industry Location System(Mas/Mils)CD-Rom,Sep,1995] |
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Microcline | |
| | Habit: | Anhedral | | Colour: | gray, white, pink | | Fluorescence: | Pale red in S.W light | | Description: | Ubiquitous as porphyroblasts in schist. Also present in some simple pegmatites. | | Reference: | [K. Wood collection] |
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Molybdenite | |
| | Habit: | Platy cleavage mass | | Colour: | silvery gray | | Fluorescence: | none | | Description: | Found once as a 7x8x1mm single crystal/cleavage mass in an ankerite vein. | | Reference: | [K. Wood collection] |
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Muscovite | |
| | Habit: | Hexagonal; also subhedral books | | Colour: | Light to medium brown | | Fluorescence: | none | | Description: | Nice hexagonal books can be obtained from ankerite veins by etching. Occassionally present as large books in certain pegmatites. Superb sharp crystals occurred with kainosite in a unique one-time find. | | Reference: | [K. Wood collection] |
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'Perthite' | |
| | Reference: | [Gems and Minerals of America-Jay Ellis Ransom-1974] |
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Prehnite | |
| | Habit: | Sharp stubby to acicular crystals, also rounded radiating crystals | | Colour: | Light green | | Fluorescence: | none | | Description: | Nice crystals to 0.5cm, sometimes enclosed in calcite that can be removed with cold HCl acid. | | Reference: | [K. Wood collection] |
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Pyrite | |
| | Habit: | Cubes | | Colour: | Brassy | | Fluorescence: | none | | Description: | Occurs sparsely as crystals to 0.5mm in stilbite and prehnite veins. | | Reference: | [K. Wood collection] |
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Pyrolusite | |
| | Reference: | [Genth,F.A and Kerr,W.C,1881,Minerals and Mineral Localities of North Carolina] |
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Pyrrhotite | | Fe | | S | | , (-4M), also given as Fe | | S (x = 0 - 0.2) |
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| | Habit: | massive, rarely as platy hexagonal crystals | | Colour: | bronze | | Fluorescence: | none | | Description: | Occassionaly present in ankerite veins as masses up to several cm. Found once as euhedral platy hexagonal crystals up to 1.5mm in diameter in a calcite-lined vug in an ankerite vein. | | Reference: | [K. Wood collection] |
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Quartz | |
| | Habit: | massive, drusy, simple to complex crystals, | | Colour: | white, light smoky, rarely rose | | Fluorescence: | none | | Description: | Drusy crystals common in stilbite veins. Rare as euhedral crystals in vugs in ankerite veins, sometimes with visible fluid inclusions. Also massive in veins and pegmatites. Pale rose quartz found once in an ankerite vein. | | Reference: | [K. Wood collection] |
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Quartz
var: Amethyst | |
| | Reference: | [No reference listed] |
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Quartz
var: Blue Quartz | |
| | Reference: | [Gems and Minerals of America-Jay Ellis Ransom-1974] |
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Quartz
var: Rose Quartz | |
| | Reference: | [Jay Ellis Ransom,1974,Gems and Minerals of America, pg # 451] |
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Quartz
var: Rutilated Quartz | |
| | Reference: | [Rocks & Min. 71(4):248] |
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Quartz
var: Smoky Quartz | |
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Rutile | |
| | Habit: | Reticulated twins and acicular crystals. Also, spongy massive material as pseudomorphs of ilmenite. | | Colour: | Black, brown | | Fluorescence: | none | | Description: | Present in ankerite veins as black reticulated twins that might be crudely pseudomorphous of ilmenite crystals, and as sharp massive brown pseudomorphs of ilmenite typically hosted in calcite. | | Reference: | [K. Wood collection] |
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Schorl | | [Na][Fe | | ][Al | | ][(OH) | | |OH|(BO | | ) | | |Si | | O | | ] |
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| | Habit: | Trigonal prisms with pyramidal termination. | | Colour: | Black | | Fluorescence: | none | | Description: | Prismatic crystals to 6cm in ankerite veins. Also, radiating sprays to 15cm of slender needles have been found in sugary chlorite in ankerite veins. | | Reference: | [K. Wood collection] |
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Siderite | |
| | Habit: | Rhombohedrons | | Colour: | tan | | Fluorescence: | none | | Description: | Only observed in rare vugs in ankerite veins. Crude crystals to 1.0cm. | | Reference: | [K. Wood collection] |
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Sillimanite | |
| | Reference: | [J.Robert Butler,1984,Map showing Paleozoic Metamorphic Facies,NCGS] |
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Spessartine | |
| | Reference: | [Gems and Minerals of America-Jay Ellis Ransom-1974] |
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Sphalerite | |
| | Habit: | Crude irregular crystals, also rarely as octahedrons. | | Colour: | brown, yellowish brown | | Fluorescence: | none | | Description: | Rare as grains and crystals to 8mm in prehnite veins. Sometimes enclosed in massive prehnite. | | Reference: | [K. Wood collection] |
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Staurolite | | (Fe | | ,Mg,Zn) | | Al | | [O | | |(OH,O) | | |(SiO | | ) | | ] |
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| | Reference: | [Gems and Minerals of America-Jay Ellis Ransom-1974] |
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'Stilbite' | |
| | Habit: | Straight prism, pyramid, and pinacoid faces. Also radiating. | | Colour: | light manila, also white | | Fluorescence: | none | | Description: | Common as well formed, light manila-colored, straight-sided crystals to 4cm in veins in the NW end of the quarry. Also occurs sparsely as white irregular to radiating crystals in prehnite veins. | | Reference: | [K. Wood collection] |
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Talc | |
| | Reference: | [Gems and Minerals of America-Jay Ellis Ransom-1974] |
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Titanite | |
| | Habit: | Tabular | | Colour: | brown to yellowish brown | | Fluorescence: | none | | Description: | Relatively rare crystals to 1.4cm in ankerite veins. Known from only a few finds. | | Reference: | [K. Wood collection] |
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'Tourmaline' | |
| | Reference: | [U.S Bureau of Mines/Spatial Data from the Minerals System/Mineral Industry Location System(Mas/Mils)CD-Rom,Sep,1995] |
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