General Stock Page 9 

    Minerals Beginning with "L" and "M"

	JC6378.  Magnetite, arsenopyrite.  Huanggang mine, N. of Hexigten Banner (Keshiketeng county), Ulanhad League (Chifeng prefecture), Inner Mongolia, China.   9 x 13 cm  >1000g.  $300.00.   This one really struck my eye.  A neat combination.  The magnetite has a bright satiny luster, dodecahedral form, which is rather unusual,  and are a dark blackish brown, sitting on top of brilliant silvery arsenopyrite.  The arsenopyrite does have some damage around the edges, and I tried to show this in the lower close up photo below.  A striking and different specimen.  Originally these were sold as andradite by the Chinese, and they have now changed the identification to magnetite...makes sense as a magnet sticks to them rather well.
	JC6378.  A closer view of the arsenopyrite.
	JC6106.  Malachite pseuodo azurite, azurite.  Tsumeb mine, Tsumeb, Namibia.  6 x 7 cm    $200.00.   Main crystal is 6 cm in size.  A smaller crystal is offset on the right hand edge.   Ex Konrad Olf collection, Idar-Oberstein, Germany.   Collected in the 1940's.
	JC6106.  Reverse.   This might be a better display side, as the shape of the replaced azurite crystal is quite distinct.
	JC6358.  Malachite pseudo azurite, azurite.   Tsumeb mine, Tsumeb, Namibia.   6 x 8.5 cm  266g.  $75.00.   A 6 cm malachite mostly replacing azurite, with some unreplaced azurite also present.   From the upper oxide zone.   Ex Konrad Olf collection, Idar-Oberstein, Germany.   Collected in the 1940's.
	JC6359.   Malachite pseudo azurite, azurite.  Tsumeb mine, Tsumeb, Namibia.   4 x 8.5 cm  242g.  $40.00.  A very crude azurite crystal nearly completely replaced by malachite.  From the upper oxide zone.  Collected in the 1940's.
	JC356.  Malachite.  El Cobre mine, Zacatecas, Mexico.  2.5 x 3.5 cm  31g.  $8.00.    From the finds of the 1960's.       Sold
	JC5684.  Malachite, azurite.  Milpillas mine, Sonora, Mexico.  5 x 8 cm  116g.  $165.00.   Four dark royal blue azurite crystals are resting on green malachite pseudomorphs after azurite.  Two views are shown.
	JC5684.  Another view.
	JC5096.  Malachite pseudo azurite.  Milpillas mine, Sonora, Mexico.  3 x 5 cm  33g.  $100.00.   Cute pseudomorph, with good sharp crystals of azurite replaced by the malachite.
	JC5055.  Malachite, malachite pseudo azurite, quartz.  Gumeshevsk, Ural Mountains, Russia.  8 x 12 cm   502g.  $250.00.   Something not often seen for sale.  An old Russian malachite, in fine condition.  Most is somewhat botryoidal, with great color, and some is pseudomorphous after short stout azurite.  This can be seen a bit in the 1st photo below, of the left side, where some of the blocky crystals are the replacements after the azurite.  Bits of quartz shards are the white areas in the specimen.  A real rarity these days.  At the Denver show in September 2011 the theme was Russian minerals.  There were several malachite specimens on display from Russia in the exhibit cases.  None were as good as this one.
	JC5055.  Close up left side
	JC5055.  Close up right side
	JC4980.  Malachite pseudo azurite.  Emke mine, Onganja, Namibia.  4 x 5 x 6 cm  82g.   $250.00.   Sharp green pseudos, with nice chatoyancy.  Nice and 3 dimensional, which is hard to tell from the photo.  Very rarely are these offered for sale, and usually quite expensive.  These are all pseudos after azurite, with several crystals present.
	JC4980.  Slightly different view.
	JC4569.  Malachite, olivenite.  Ibiajara, Bahia, Brazil.  3 x 5 cm  27g. $75.00   Acicular olive green olivenite with malachite coating most of them, there are several uncoated olive green, acicular crystals of olivenite also present.  A one time find that now appears exhausted.
	JC4575.  Malachite.  West Burra mine, Mount Lofty Ranges, nr. Burra, South Australia.  5.5 x 9 cm  138g.  $150.00.  The Burra mine closed in 1981, an open pit, now flooded.  This is a classic specimen of botryoidal malachite from there, with minor, sparkly azurite crystals to enhance the specimen.   Collected prior to 1981.   Sold
	JC4345.  Malachite.  Liufengshan mine, Lishan, China.  7.5 x 11 cm.  415g.   $75.00.   A pretty mix of botryoidal and velvet malachite with a few vugs to give it a nice three dimensional look.    Sold
	JC3915.  Malachite and malachite pseudo azurite.  Tsumeb, Namibia.    4.5 x 5 cm.  115g.  $35.00.  Both botryoidal and pseudomorphous after azurite.  Two views.  Pretty.  Sawn back.
	JC3915.  Another view.
	JC4669  Malachite, azurite.     Blue Jay mine, Big Eightmile Creek, Lemhi County, Idaho.  3 x 5 cm  49g.  $12.00.
	JC4665   Malachite, tenorite.  Blue Jay mine, Big Eightmile Creek, Lemhi County, Idaho.  4 x 6 cm  25g   $8.00.
	JC4667.  Malachite, azurite.     Blue Jay mine, Big Eightmile Creek, Lemhi County, Idaho.  4 x 4 cm  46g.  $15.00.   One of the better malachite specimens for its size.
	JC2688.  Malachite, tenorite, azurite.   Blue Jay mine, Big Eightmile Creek, Lemhi County, Idaho.   5 x 9 cm  173g.  $20.00.   Bubbly balls of green malachite with black tenorite and minor azurite.
	JC2450   Malachite, tenorite, azurite.   Blue Jay mine, Big Eightmile Creek, Lemhi County, Idaho.   3 x 4.8cm  41g    $8.00.   Botryoidal malachite.   On Hold
	JC5327   Microcline.   Crystal Creek, Teller County, Colorado.   A 6 cm crystal.  234g.   $15.00.
	JC5328.  Microcline, albite.   Crystal Creek, Teller County, Colorado.   8 x 9 cm   444g.  $35.00.   A group of pink microcline crystals with an oriented overgrowth of albite on them that look like teeth on the pink microcline.
	JC5330     Microcline, albite.   Crystal Creek, Teller County, Colorado.  5.5 x 6 cm   94g.  $20.00.    A group of pink microcline crystals with a little oriented overgrowth of albite on them.
	JC480.  Millerite.  Estabrook Park, Milwaukee, Wisconsin.  2.5 x 2.5 cm  32g.  $15.00.   A little spray of crystals in a calcite lined vug.   A long extinct locality.
	JC6141.  Mimetite on cerussite.  Tsumeb mine, Tsumeb, Namibia.  7.8 x 10 cm  562g.  $65.00.   Clear, needle like crystals are nearly completely covering a solid, corroded, cerussite crystal group.    Lots of sparkle.   Two close ups are below.
	JC6141.  Close up of the upper center area.
	JC6141.  A closer view.
	JC6289.  Mimetite, calcite.  Santa Eulalia, Chihuahua, Mexico.  3 x 6 cm  82g.  $35.00.   Honey color, cauliflower shaped crystal blobs with calcite.   On Hold
	JC5764.  Mimetite.  Ojuela mine, Mapimi, Durango, Mexico.  9 x 10 cm  168g.  $75.00.   A flat plate of acicular yellow to yellow brown crystals.  Acicular crystals of mimetite are uncommon from the Ojuela mine.   Two views are shown.
	JC5764.  A closer view.
	JC5731.  Mimetite.  Pingtouling, Liannan, Guangdong province, China.  3.5 x 6.5 cm  54g.   $50.00.   Yellow crystals coating a limonite matrix.  From the find of a few years ago.
	JC5731.  A closer view.
	JC4587.   Mimetite.  Pingtouling mine, Liannan Co., China.       6.5 x 5 cm  120g.  $150.00.  Bright yellow crystals coating limonite.   Apparently extinct locality, with one find made several years ago now.
	JC4451.  Mimetite.  Tsumeb, Namibia.  3.5 x 5 cm   56g.  $75.00.   Gemmy, pale yellow crystals with some bluish unknown associated.   Bright and sparkly.
	JC4451.  Another view
	JC4069.  Mimetite.  Tsumeb, Namibia.  4.5 x 5 cm.  22g.  $25.00.  Cauliflower like aggregates on a flat piece of matrix.   Light yellow color.
	JC3993.  Mimetite, wulfenite, calcite.  Ojuela mine, Mapimi, Durango, Mexico.   6 x8 cm.  214g.  $70.00.  Pale yellow mimetite with light yellow, transparent bladed wulfenite scattered through.  Minor calcite around the edges.   This one will need to be packed in soap powder for shipment.
	JC3787.  Mimetite, calcite.  Ojuela mine, Mapimi, Durango, Mexico.  5 cm x 7 cm.  169g.  $25.00.   White rhombs of calcite with yellow orange mimetite scattered around.
	JC3748.  Mimetite, cerussite.  Tsumeb, Namibia.  4.4 cm x 6 cm  131g.  $350.00.   The cerussite crystals are completely coated with bright yellow mimetite.  A little of the cerussite shows in the lower left part of the photo.   Nice specimen that displays well.  The mimetite is slightly lighter in tone than the photo shows.   On Hold
	JC3735.  Mimetite.  Tsumeb, Namibia.  3 cm x 5 cm. tall.  78g.  $250.00  Stalactite like group, of light yellow with a slight golden tint (honey yellow).
	JC3860.  Mimetite.  Tsumeb, Namibia.  6 cm x 7 cm  103g.  $125.00.  Nice groupings of light yellow crystals.
	JC3860.  Close up.
	JC4079.   Mottramite, calcite.  Tsumeb, Namibia.  4 x 4 cm  44g.  $15.00.  Crude, white calcite crystals on plumose, very dark green mottramite.