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360:. In these rocks, it forms as disseminated small black crystals with their octahedral faces visible at times. It may rarely be found as a single large
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524:"Office of the Governor | Governor Murphy Signs Legislation Designating Franklinite as State Mineral"
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At its type locality, franklinite can be found with a wide array of minerals, many of which are
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Franklinite is a major ore of the element zinc. It is named after its local discovery at the
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The
Audubon Society field guide to North American rocks and minerals
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341:(Zn) and trivalent manganese may substitute for some ferric iron.
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Franklinite (black) with willemite (red) and calcite (white)
329:(3+) iron may be present in franklinite samples. Divalent
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None; indistinct octahedral parting in four directions
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306:subgroup's iron (Fe) series, with the formula ZnFe
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502:. New York: Alfred A. Knopf. p. 418.
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382:In 2023, Franklinite was designated the
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393:A microscopic picture of Franklinite
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451:"IMA–CNMNC approved mineral symbols"
586:. You can help Knowledge (XXG) by
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348:. More commonly, it occurs with
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498:Chesterman, Charles W. (1978).
578:This article about a specific
317:As with another spinel member
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337:(Mn) may commonly accompany
188:irregular/uneven, conchoidal
653:Minerals in space group 227
547:Mindat page for franklinite
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658:Minerals described in 1819
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420:Classification of minerals
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302:belonging to the normal
52:Spinel structural group
455:Mineralogical Magazine
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231:reddish brown to black
567:at Wikimedia Commons
412:Earth sciences portal
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279:Other characteristics
89:Strunz classification
221:metallic, often dull
663:Oxide mineral stubs
476:10.1180/mgm.2021.43
467:2021MinM...85..291W
449:Warr, L.N. (2021).
373:Sterling Hill Mines
638:Iron(III) minerals
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563:Media related to
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425:List of minerals
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247:Specific gravity
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115:Hexoctahedral (m
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62:(repeating unit)
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461:(3): 291–320.
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150:Identification
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99:Crystal system
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643:Zinc minerals
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580:oxide mineral
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384:state mineral
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369:Franklin Mine
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633:Spinel group
588:expanding it
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531:. Retrieved
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260:fluorescence
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49:Spinel group
565:Franklinite
346:fluorescent
296:Franklinite
274:HCl soluble
257:Ultraviolet
237:Diaphaneity
134:Space group
19:Franklinite
627:Categories
533:2023-07-20
528:www.nj.gov
509:0394502698
436:References
377:New Jersey
287:References
270:Solubility
204:Mohs scale
168:octahedral
122:H-M symbol
79:IMA symbol
485:235729616
364:crystal.
350:willemite
335:manganese
325:(2+) and
319:magnetite
251:5.07–5.22
398:See also
362:euhedral
282:magnetic
207:hardness
194:Tenacity
184:Fracture
174:Cleavage
41:Category
463:Bibcode
358:zincite
354:calcite
333:and/or
323:ferrous
321:, both
198:Brittle
124:: (4/m
93:4.BB.05
58:Formula
36:General
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430:Spinel
356:, and
327:ferric
304:spinel
298:is an
241:opaque
227:Streak
217:Luster
582:is a
481:S2CID
211:5.5–6
158:black
155:Color
104:Cubic
584:stub
504:ISBN
371:and
339:zinc
331:iron
314:.
264:None
128:2/m)
66:ZnFe
471:doi
375:in
119:m)
83:Frk
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459:85
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352:,
615:e
608:t
601:v
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473::
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312:4
310:O
308:2
145:m
143:3
141:d
139:F
126:3
117:3
72:4
70:O
68:2
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