|
Mineral Specimens with Millerite
(click on a page number to go to that page:)
page 3 / 5 - prev - 73 specimens selected - next
7.0 x 4.5 x 4.3 cm. A fine millerite specimen from the famed limestone quarries of Ollie, Iowa. A 6.0 x 2.0 cm sparkly, quartz-lined vug on snow-white limestone matrix is filled with very soft to the touch, hair-like millerite needles. Needles reach 2.0 cm on this excellent piece. Ex. George Feist Collection.
9.4 x 5.6 x 1.7 cm. A 4.0 cm across vug in white limestone is the host for a matted carpet of fibrous, taupe colored millerite. Ex. Martin Zinn Collection.
7 x 4 x 3.1 cm. A matrix-bound millerite geode, measuring 3.5 cm across. It is just filled with beautiful multicolored, iridescent millerite in acicular crystals to several centimeters. Ex. Martin Zinn Collection.
5.6 x 4.3 x 1.5 cm. A 2.7-cm vug that is filled to brim with sharp, brilliantly lustrous crystals of this beautiful nickel-species. Ex. Martin Zinn Collection.
5.2 x 4.2 x 0.7 cm. An outstanding group of acicular balls (up to 9 mm) of very fine golden-brown Millerite comprising a beautiful and delicate crust. The Millerite has a good sheen from the lustrous needles. Ex. Charlie Key.
7.3 x 5.3 x 4.0 cm. Radiating clusters of splendent, brassy millerite needles encircle a melted-look nodule of arsenian pyrite on this superb and unusual specimen from the famous Meikle Mine of Nevada. The millerite clusters look like a wreath or tiara on the pyrite. The exact mine location is the 41-20 Heading of the Griffin Ore Body.
10.0 x 7.4 x 4.0 cm. An extremely scarce example of millerite from this old silver mining district, where it was always exceedingly rare. The specimen consists of thin vein-like millerite interspersed between calcite, in massive calcite.
8.0 x 7.6 x 4.4 cm. This is a rare sample of millerite from the Harz, with what seem to be rich nodular masses of microcrystals embedded in calcite, as well as some elongated plates within the calcite.
One is often lucky to find even a few Millerite crystals in a geode or vug. Maybe a nice spray if the gods are looking favorably on you...Here you have a geode absolutely packed with lustrous and perfect needles and a rare associated pyrite. This is a rare killer specimen for the species and what is more, it can be safely mailed as the crystals are protected in a natural geode. I used to collect here as a kid, before the government sealed access due to the danger of collecting under an increasingly undercut overhang alongside a state freeway (Those louts! go figure!). It ain't easy, I can tell you, and the actual nickel-rich layer of rock containing the millerite-bearing geodes was a you-know-what to work at, laying on your back tapping at the ceiling of the cut with 20 feet of overburden above you. I have great respect for Neal Pfaff and Bill McKenzie who collected so much of it. Most of what I found were empty geodes! 3.8 x 2.5 x 1.9 cm
6.4 x 5.8 x 4.7 cm. A spectacular, two-sided vug nearly filled to closing with lustrous, brassy, acicular millerite needles from the well-known Thompson Mine in Manitoba, Canada. This is classic, superb material from the locality and is from the Marty Lewadny Collection of Winnipeg, Canada.
4.4 x 3.8 x 1.8 cm. You probably think of millerite (nickel sulfide) in its rare crystalline (acicular) form, as that is the form it takes in most collector specimens. But here, it appears as a silvery vein running through a chunk of gaudy golden and purple chalcopyrite. Ex. Dr. Gunter Grundmann Collection.
2.1 x 1.9 x 1.8 cm. An exceptional and rare piece from a long extinct Milwaukee, Wisconsin locale and honestly from the Rob Lavinsky childhood mineral collection (a long time ago, bought when I was too young to drive a car). A diverging spray of bright, golden millerite needles to 1.8 cm are embedded in calcite within a fossilized mollusk shell. This was one of the treasures of my childhood collection.
7.4 x 6.8 x 2.3 cm. A classic old-time specimen from the Dan Ehrling Collection, he got it by exchange of African specimens to the University of Chicago in the 1960s and 1970s. This is a protected pocket in tough matrix, featuring a 1.2 cm spray of millerite crystals on siderite druse. Classic for the locale.
4.0 x 3.5 x 3.0 cm. This is a very nice miniature of classic Halls Gap millerite, from a now-inaccessible location closed to further collecting visits (though I got there as a kid, before they closed it off). This specimen features a very rich nest of acicular millerite crystals in a quartz- lined geode, typical for the locality (when digging, you would look for geodes in slightly green, or nickel-rich, rock layers). Bill obtained this specimen from the Carlton Davis collection and I can say this is the first millerite specimen I ever saw, when Carl taught me about minerals in the mid-1980s. Ex. Bill Pinch and Carlton Davis Collections.
1.7 x 1.5 x 1.0 cm. A small specimen, but a significant locality piece for the brilliant lustre and rarity of the material on the market today. Most of these would date to the 1800s, and a good one is hard to obtain. Ex. Bill Pinch Collection.
(click on a page number to go to that page:)
page 3 / 5 - prev - 73 specimens selected - next
Rob Lavinsky, rob@irocks.com
All Content and Design ©1996-2012 The Arkenstone
Mineral Specimens by species; or
by specimen id.
|