New Arrivals Page 1 

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JC10681. Ludwigite, forsterite?  Spring Gulch/Valley View mine area, Quartzite (White Rock) canyon, Spring Mountain district, nr. Big Windy Peak, Lemhi county, Idaho.   10 x 16 cm >1000g.   $150.00  The front face is covered with a heavy scattering of prisms, many with tiny dots of forsterite?  The central area of black lustrous crystals was etched out of calcite, and the edges and part of the back is composed of oxidized semi massive ludwigite, which has this odd amorphous orange oxide material.  There is a patch of larger black ludwigite crystals on the back.  I have been told the light colored specks of anhedral mineral are forsterite, but I haven't personally had it analyzed.     Looks better in person.  The ludwigite prisms tend to blend together in the photos.   
JC10861.  Closer view.   
JC10861.   Closer view.  
JC10752.   Ludwigite, calcite, forsterite?.  Spring Gulch/Valley View mine area, Quartzite (White Rock) canyon, Spring Mountain district, nr. Big Windy Peak, Lemhi county, Idaho.  6 x 12 cm   685g.  $175.00.  Mass of bright black crystals, coverage on broth front and back.    I have been told the light colored specks of anhedral mineral are forsterite, but I haven't personally had it analyzed.    
JC10752.  Closer view.  
JC10752.  Back side. 
JC10756.    Ludwigite, forsterite?  Spring Gulch/Valley View mine area, Quartzite (White Rock) canyon, Spring Mountain district, nr. Big Windy Peak, Lemhi county, Idaho   5.5 x 5.5 cm  108g.  $50.00    4 cm crystal.  A rather ugly piece, its claim to fame though is it has a terminated crystal.   Terminated crystals are quite rare.  The termination is flat, with a few small offsets.  RESERVED
JC10756.  Both crystals are terminated, this is a view of the larger crystal. 
JC10765Ludwigite, calcite.   Spring Gulch/Valley View mine area, Quartzite (White Rock) canyon, Spring Mountain district, nr. Big Windy Peak, Lemhi county, Idaho   5 x 7.5 cm  133g.   $100.00.   Groups of jackstraw like crystals.   Some minor hematite on the back and front. 
JC10765.   Closer view. 
JC10765.  Back side.  
JC10785.  Ludwigite, calcite, forsterite?  Spring Gulch/Valley View mine area, Quartzite (White Rock) canyon, Spring Mountain district, nr. Big Windy Peak, Lemhi county, Idaho.  8 x 9.5 cm   463g.  $135.00.   Many prisms in calcite.  A bit of oxidation here and there, but not much overall.  The beige material is supposedly forsterite, but I have not had it verified.
JC10785.   Closer view of the upper right. 
JC10817.  Ludwigite.  Spring Gulch/Valley View mine area, Quartzite (White Rock) canyon, Spring Mountain district, nr. Big Windy Peak, Lemhi county, Idaho.   4 x 7 x 7 cm  143g.  $40.00  A rather ugly piece, its claim to fame though is it has a couple of terminated crystals.   Terminated crystals are quite rare.  The termination is flat, with a few small offsets. 
JC10817.   Closer view of the terminations.  
JC10819 Ludwigite, forsterite?  Spring Gulch/Valley View mine area, Quartzite (White Rock) canyon, Spring Mountain district, nr. Big Windy Peak, Lemhi county, Idaho.  5 x 5.5 cm  64g.   $40.00   A rather ugly piece, its claim to fame though is it has a terminated crystal.   Terminated crystals are quite rare.  The termination is flat, with a few small offsets.  The beige material is supposedly forsterite, but I have not had it verified.
JC10819.  View of the termination. 
JC10819.  Another view of the termination.  
JC10827.   Ludwigite.   Spring Gulch/Valley View mine area, Quartzite (White Rock) canyon, Spring Mountain district, nr. Big Windy Peak, Lemhi county, Idaho.  3 x 5 cm  39g.  $30.00  Group of crystals, with minor oxidation staining on them.  
JC10832.   Ludwigite.   Spring Gulch/Valley View mine area, Quartzite (White Rock) canyon, Spring Mountain district, nr. Big Windy Peak, Lemhi county, Idaho.  4 x 5 cm   55g.  $30.00.   Jackstraw group of crystals.   
JC10840.   Ludwigite, calcite, forsterite?.   Spring Gulch/Valley View mine area, Quartzite (White Rock) canyon, Spring Mountain district, nr. Big Windy Peak, Lemhi county, Idaho.  7 x 8.5 cm  221g.  $125.00.   One of the few matrix pieces.  This one was in a narrow vein, so the crystals sticking vertically up from the matrix contacted the opposite wall, which left a beige residue on there ends.   The beige material is supposedly forsterite, but I have not had it verified.
JC10840.  Another view. 
JC10840.   Close up view. 
JC10842.   Ludwigite.   Spring Gulch/Valley View mine area, Quartzite (White Rock) canyon, Spring Mountain district, nr. Big Windy Peak, Lemhi county, Idaho.    8 x 12 cm  778g.  $175.00.   Mass of short black prisms.
JC10842.   Closer view.  
JC11628.   Magnetite.  Bruce Estate copper mine, Spring Mountain district, Lemhi county, Idaho.    6 x 8 cm   160g.  $18.00   Largest magnetite is 1.2 cm, the magnetite crystals are slightly pitted, typical for this deposit.  The beige mineral is possibly forsterite, although I haven't had it analyzed.   There are a couple of broken magnetite crystals.
JC11632.  Magnetite.  Bruce Estate copper mine, Spring Mountain district, Lemhi county, Idaho.  3 x 5 x 7 cm   208g.   $10.00   Magnetite crystals to 1.3 cm, a bit pitted as usual.  Satiny luster.
JC11634.  Magnetite, spinel?.  Bruce Estate copper mine, Spring Mountain district, Lemhi county, Idaho.   6 x 6.5 cm   303g.  $28.00.   Magnetite to 1.7 cm in size.  Satiny luster.  The magnetite crystal on the center right edge has a ding in it and a chipped termination.   Several magnetite crystals have what appears to be glassy luster epitaxial spinel crystals on them, although these have not been analyzed. 
JC11637Magnetite.  Bruce Estate copper mine, Spring Mountain district, Lemhi county, Idaho.  5 x 7 x 9 cm  348g.  $15.00.   1 cm and smaller magnetite crystals on the front side.  Partial prisms of highly altered ludwigite crystals are present here and there.  The magnetite has satiny luster and the slightly pitted look typical of this deposit.   
JC11637.   Another view. 
JC11640.  Magnetite, spinel?.  Bruce Estate copper mine, Spring Mountain district, Lemhi county, Idaho.  2.5 x 4 cm  34g.  $8.00.    A 2 cm slightly pitted magnetite is the main crystal, in view in the photo.   Attached to the crystal, on its side are several tiny, glassy crystals of what appears to be black spinel crystals.  
JC11641.  Magnetite.  Bruce Estate copper mine, Spring Mountain district, Lemhi county, Idaho.   4 x 5.5 cm   89g.  $15.00.   1 cm and smaller, satiny luster magnetites make up the piece.   There is an incomplete crystal the tannish looking material is.  
JC11642Magnetite, calcite.   Bruce Estate copper mine, Spring Mountain district, Lemhi county, Idaho.   3.5 x 5 cm  165g.  $8.00.     1.5 cm and smaller magnetite crystals.  A couple of incomplete crystals on the edge.   
JC11643Magnetite, spinel?  Bruce Estate copper mine, Spring Mountain district, Lemhi county, Idaho.  4 x 6.5 cm   107g.  $12.00.      1 cm and smaller magnetite crystals with satiny luster.  Attached to the side of one crystal are several tiny, glassy crystals of what appears to be black spinel crystals.  
JC11644Magnetite, spinel?  Bruce Estate copper mine, Spring Mountain district, Lemhi county, Idaho.   3 x 5 cm   48g.  $8.00.   Several magnetite crystals, one broken.  Attached to the side of a couple of crystals are several tiny, glassy crystals of what appears to be black spinel crystals.   These are the darker black spots in the photo.   
JC11645.  Magnetite.  Bruce Estate copper mine, Spring Mountain district, Lemhi county, Idaho.  4 x 4 cm   55g.  $7.00.   Several magnetite crystals to and over 1 cm.  Some are chipped as seen in the photo.   
JC11646Magnetite, spinel?  Bruce Estate copper mine, Spring Mountain district, Lemhi county, Idaho.  4.5 x 5 cm  102g.  $10.00   Attached to the side of a couple of crystals are several tiny, epitaxial, glassy crystals of what appears to be black spinel crystals.  The magnetite crystals have cracks going through them (shrinkage cracks?), but are stable.  One magnetite on the top right has been sheared off, although not obvious in the photo.   
JC11647.  Magnetite, forsterite?, ludwigite.  Bruce Estate copper mine, Spring Mountain district, Lemhi county, Idaho.  6 x 8 cm  167g.  $25.00.    Rather pitted magnetite crystals with satiny luster.  Scattered about are subhedral beige forsterite? crystals.  Along the base are scattered tiny, highly altered, now orange, ludwigite crystals.    
JC11647.   Closer view.
JC11649.  Magnetite.  Bruce Estate copper mine, Spring Mountain district, Lemhi county, Idaho.   7 x 10 cm  275g.  $30.00.     1.5 cm and smaller magnetite crystals, highly modified octahedrons.  The orange areas are highly altered ludwigite crystals.   
JC11649.  Another view.  
JC11652Magnetite, forsterite?, ludwigite.  Bruce Estate copper mine, Spring Mountain district, Lemhi county, Idaho.    6 x 8 cm  142g.  $25.00.   2 cm and smaller, highly modified octahedral form crystals with satiny luster.  The little orange crystals are highly altered ludwigite crystals.  
JC11654.  Magnetite.  Bruce Estate copper mine, Spring Mountain district, Lemhi county, Idaho.   6 x 6 cm  230g.  $15.00.  Lustrous octahedrons of magnetite.  A few have cracks going through them (shrinkage cracks?), but are stable.    Sawn back
JC11655Magnetite, ludwigite.  Bruce Estate copper mine, Spring Mountain district, Lemhi county, Idaho.  6 x 7 cm  279g.  $18.00.  A 3 cm, magnetite, a bit pitted, with dull satiny luster makes up the lower part of the piece.  The only piece I found that had unaltered ludwigite crystals on it.   Several, somewhat raggedy looking prisms lying on the magnetite, visible in the photo.  
JC11655.   Another view.   
JC11657Magnetite.  Bruce Estate copper mine, Spring Mountain district, Lemhi county, Idaho.   3.5 x 7.5 cm  75g.  $12.00.   Sharp octahedrons, one broken.  The crack down the middle does not extend all the way through the piece.   Possibly a shrinkage crack?    Luster varies from bright to dull.    
JC11658.  Magnetite.  Bruce Estate copper mine, Spring Mountain district, Lemhi county, Idaho.   3 x 5.2 cm  48g   $5.00.  Small octahedrons.  
JC11659Magnetite.  Bruce Estate copper mine, Spring Mountain district, Lemhi county, Idaho.  5 x 7.5 cm  564g.  $25.00.   Large, up to 2.5 cm highly modified octahedrons of magnetite.  The orange spots are remnants of highly altered ludwigite crystals.   Luster is bright satiny when turned in the light.   
JC11659.  Another view.  
JC11664Magnetite.  Bruce Estate copper mine, Spring Mountain district, Lemhi county, Idaho.   8 x 10 cm  890g.   $38.00.   Up to 2.7 cm, highly modified octahedrons of magnetite.  Satiny luster.  Bit of calcite left in the middle.   Minor ludwigite in thin needles on the back.  
JC11664.  Closer view. 

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