Barite

**Combinations on crystals of barite**
	Forms	Localities	Illustration
1	c, u, m
2	c, d, o	Taylor mine
3	c, a, b, m, l, u, d	North end of workings
4	c, m, l, d, o, P, v, z	Parker shaft	Figure 196

Occurrence
Barite in small amounts is a rather widely distributed mineral at Franklin. It is found in veins of many types, generally as one of the last minerals to crystallize. Genth (145) noted it associated with axinite at the Trotter shaft, and Penfield (173) found it among the rare minerals of the Parker shaft. Several specimens from the Parker shaft were seen, in which the barite was faintly bluish and filled cavities in axinite and rhodonite. It forms platy aggregates and in one cavity a few small crystals of the habit of figure 196 but with the additional forms P(116) and v(115), too minute to be figured.

Figure 196
End of prismatic crystal of barite showing the forms c(001), m(010), l(114), d(102), o(011), and v(115). Trotter shaft. [Web Ed. note: associated text suggests this should be ‘Parker shaft’.]

Prismatic crystals of pale-yellow barite with the forms c(001), d(102), and o(011) incrust the specimen of friedelite from the Taylor mine that was found in the Kemble collection.

The best crystals seen, combination 3, were associated with green willemite and hodgkinsonite as described on page 85. Barite is rarely absent from veins containing hodgkinsonite.


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	This page created: January 12, 2001 5:45 PM