Distinctly Dutch - New York State Museum

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hidden treasures MicroMinerals By Dr. Marian Lupulescu Beautiful yellow calcite “flower,” CaCO 3 , on dolomite matrix, Middleville, Herkimer County. The calcite cluster is 5 mm across. NYSM 22263 By Dr. Marian Lupulescu The minerals in some specimen samples are too tiny to be seen by the naked eye, but mineralogists can study their form, color, and relationship with other components by using digital imaging software. The software used by Museum scientists extends the capabilities of the optical microscope, such as the depth of field, and produces perfect image stitching from samples with considerable depth of field. For the images shown here, the scientist used the optical microscope to take a number of images from different levels between the base and the top of the mineral. Then, the software assembled all the images and rebuilt the crystal in high-resolution 3-D digital photography. n Dr. Marian Lupulescu is curator of minerals at the New York State Museum. His research interests in mineralogy include mineral classification and new mineral species as well as how minerals form and change their composition and structure with the environment. “The Tower of Pisa.”Cluster of shinny golden crystals of marcasite, FeS 2 , with white melanterite, FeSO 4 .7H 2 O, from the Cicero clay pits, Onondaga County. The cluster is 3 mm in length. NYSM 22265 Short prism of pale yellow olenite, NaAl 3 Al 6 Si 6 O 18 (BO 3 ) 3 (O 3 )(OH), associated with white rossmanite, [ ](Li 2 Al)Al 6 Si 6 O 18 (BO 3 ) 3 (OH) 3 (OH), from Newcomb, Essex County. The olenite crystal is 1 mm in length. NYSM 426.21 hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh 10 n Legacy
Tiny wine-red crystal of the tourmaline-group species, manganese-rich hydroxy-uvite, CaMg 3 (Al 5 Mg)Si 6 O 18 (BO 3 ) 3 (OH) 3 (OH), from the Arnold Pit, Balmat, St. Lawrence County. The crystal is 0.5 mm in length. NYSM 15248 Square crystal of wulfenite, PbMoO 4 , with rounded corners from Ellenville, Ulster County. The crystal is 0.9 mm on the outer edge. NYSM 19307 Small, rounded, emerald-dark-green crystals of chromdravite, NaMg 3 Cr 6 Si 6 O 18 (BO 3 ) 3 (OH) 3 (OH), associated with green tremolite and quartz, from the Gouverneur # 1 Talc Mine, St. Lawrence County. The central crystal of chromdravite is 0.07 mm in diameter. NYSM 22112 Two beautiful golden sprays of goethite, FeO(OH), on quartz from the Sterling mine, Jefferson County. The sprays are 0.4 mm across. NYSM 22533 Beautiful spray of pale green fibers of pecoraite, Ni 3 Si 2 O 5 (OH) 4 , in a tiny vug in quartz, from the Sterling mine, Jefferson County. The longest fiber is 3.9 mm. NYSM 22549 Cluster of lamellar white crystals of gypsum, CaSO 4 .2H 2 O, with calcite (brown) peppered by balls of pyrite (dark). The longest gypsum crystal is 3 mm in length. NYSM 22300 hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh Summer 2009 n 11
Page 1 and 2: The Magazine of the New York State
Page 3 and 4: contents Vol. 5 • No. 1 summer 20
Page 5 and 6: museum news Exhibition Explores Hud
Page 7 and 8: volunteers in action Jerry Haller M
Page 9 and 10: Discovery Squad Student Receives Pr
Page 11: Update on the Schuyler Flatts Buria
Page 15 and 16: In 2006, the New York State Museum
Page 17 and 18: their family’s long history in ba
Page 19 and 20: NYSM in person Ryan Fitzpatrick of
Page 21 and 22: Table, c. 1760, exhibiting a type o
Page 23 and 24: Celebrate Your Child’s at the

Distinctly Dutch - New York State Museum

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