Also found in: Thesaurus, Encyclopedia, Wikipedia.


A black, slightly magnetic mineral of zinc, iron, and manganese, ZnFe2O4, that is a valuable source of zinc.

[After Franklin, a borough of northern New Jersey.]


(Minerals) a black mineral consisting of an oxide of iron, manganese, and zinc: a source of iron and zinc. Formula: (Fe,Mn,Zn) (Fe,Mn)2O4
[C19: from Franklin, New Jersey, where it is found, + -ite1]
Mentioned in ?
References in periodicals archive ?
03-0888) and franklinite (Zn[Fe.sub.2][0.sub.4]) were respectively identified in the melt shop and powder blast furnace wastes (Martins, Neto, & Cunha, 2008).
In the original sample major peaks of zincite (ZnO), franklinite (ZnFe2O4) and magnetite (Fe3O4) were identified in which ZnO has four distinct peaks with 2th angle of 31.77, 34.42, 36.24 and 47.57 were observed.
Different phases identified by XRD analysis are zincite, franklinite and magnetite with zincite being dominant.
This is identified as face-centered-cubic (FCC) franklinite Zn[Fe.sub.2][O.sub.4] with space group Fd-3m (227) and lattice parameters of a = b = c = 8.443 [angstrom].
It is in this holler that Franklinite militia leader John Sevier handily defeated a large Chickamauga contingent composed of Cherokee, Creek, and presumably Shawnee warriors under the leadership of Chief John Watts.
I suggest that, considering the ambiguities of this sign, one might be coaxed into joining (if one were a Franklinite) a counterorganization called DON'T END BRAKE RETARDER PROHIBITION.
Its ferrite-based pigments are produced from electric arc furnace (EAF) dust associated with carbon steel production, which contains a mixture of ferrites (franklinite: ZnFe204; magnetite: Fe304) and mixed oxides with heavy metals.
Topics include microstructure formation of Al-Fe-Mn-Si aluminides by pressure-assisted reactive sintering of powders, structural transformation of boron nitride powders, impedance response of franklinite films to humidity and propane, and friction stir linear welding of an aluminum alloy.
A classic example is the old technique of reconstructing missing portions of broken franklinite crystals with plaster of Paris, then using black shoe polish to color the white plaster of Paris portions to match the color and luster of the original black franklinite.
Herb was "bewildered to see people bent over piles of rocks, swinging away with sledgehammers." Curious, he subsequently visited the American Museum of Natural History and saw his first Franklin mineral, a "huge, perfect franklinite crystal perched on white calcite with a wide band of rich, deep-red zincite across the front." He was hooked.