There were very extensive representations from the Broken Hill collections of Milton Lavers and Rod Sielecki, and I still cherish images of certain specimens of copper, rhodonite
, pyromorphite,anglesite, smithsonite, cerussite ...
Large and superb crystals of translucent to gemmy, brilliant red rhodonite
found in a manganese mine near Conselheiro Lafaiete, Brazil have been reaching the mineral market in recent years.
specimens in these cases even silenced the nay-sayers who were viewing their first museum-quality New Jersey rhodonite
specimens (sharp, blocky rhodonite
crystals to 15 cm on matrix!).
For exciting examples, see below under California and Venezuela gold; California ferro-axinite; Thetford Mines, Quebec andradite; Ojuela mine, Mexico mimetite and hemimorphite; Peruvian rhodonite
; Madagascar liddicoatite; Kazakhstan copper; Pakistan anatase and brookite; and many more.
In February 1890 Niven received "one of the best lots of minerals from Nova Scotia I have ever seen, comprising chabazite, gmelinite, analcite, stilbite and heulandite," and also offered for sale an intriguing specimen: "the finest, largest and best rhodonite
specimen that doubtless has ever been found," priced very high (for the times) at $500.
For at least 30 years, a manganese-rich skarn deposit somewhere near Conselheiro Lafaiette, Minas Gerais, has been known occasionally to produce deep pink rhodonite
, very rarely in gemmy crystals (see Alvaro Lucio's 1971 note in vol.
A more satiny luster characterizes some benitoite, barite and rhodonite
. The presence of lively luster rewards the viewer with visual stimulation, a quality often absent in dull-lustered crystals.
"Jewelry-industrial" and "industrial" materials range down a scale from lazurite, jadeite and nephrite at the top, through charoite, rhodonite
, jasper and petrified wood, to items like "aventurine quartzite," "ophicalcite (serpentine/calcite)" and "agalmatolite (pyrophyllite/talc)," although, perhaps mercifully, the last three which merit separate chapters in the parade of chapters to follow are malachite, chalcedony and rhodonite
Along the lower perimeter of the middle and bottom workings we have encountered a distinctly different skarn assemblage consisting of rhodonite
, massive epidote, and a chocolate brown mineral in a fine-textured gray-green matrix (see under diopside).
([Mn.sup.2+], [Fe.sup.2+], Mg, Ca)Si[O.sub.3]
Cerussites, fine rhodonite
in galena and especially a world-class stolzite garnered the most praise.
Also in the case were specimens from the George Vaux collection including a particularly fine rhodonite
from Franklin, New Jersey.