Travis Olds' Photo Gallery

Collecting with Alex, Joy, and Chuck.

Upper dumps, North Star Mine, Mammoth, Tintic Mining District, Juab County, Utah, USA

Hot day on the upper dumps of the North Star mine with (right to left) Alex Earl, Joy Desor, and Chuck Adan.

E6K-133Metauroxite (UO₂)₂(C₂O₄)(OH)₂(H₂O)₂ , Gypsum CaSO₄·2H₂O , Jarosite KFe³⁺₃(SO₄)₂(OH)₆

Burro Mine, Slick Rock Mining District, San Miguel County, Colorado, USA

Field of View: 1.08 mm

Tabular growths of metauroxite on gyspum, with orangeish jarosite (top right) and an unidentified fibrous vanadate. Confirmed by SCXRD. Horizontal field of view is 1.08 mm.

DY0-LTAJacquesdietrichite Cu₂(H₂BO₃)(OH)₃ , Malachite Cu₂(CO₃)(OH)₂ , Datolite CaB(SiO₄)(OH)

Caledonia Mine, Mass City, Ontonagon County, Michigan, USA

Field of View: 1.54 mm

Bulbous blue jacquesdietrichite with green malachite and colorless gel-like datolite on copper. Analyzed by PXRD. Ex Dan Behnke collection 8413. Horizontal field of view is 1.54 mm.

5T8-W4DAnnabergite Ni₃(AsO₄)₂·8H₂O , Weilite Ca(HAsO₄)

Mohawk Mine, Mohawk, Allouez Township, Keweenaw County, Michigan, USA

Field of View: 1.1 mm

Pale green annabergite urchins with milky white weilite after pharmacolite. Field of view is 1.1 mm across.

FF7-7U5Pharmacolite Ca(HAsO₄)·2H₂O , Annabergite Ni₃(AsO₄)₂·8H₂O , Weilite Ca(HAsO₄)

Mohawk Mine, Mohawk, Allouez Township, Keweenaw County, Michigan, USA

Field of View: 2.5 mm

Transparent elongated prisms of pharmacolite (SCXRD confirmed) with pale green annabergite on altered domeykite and algodonite. Some of the pharmacolite crystal tips have been altered to weilite. Field of view is 2.5 mm across.

LUX-V3GErythrite Co₃(AsO₄)₂·8H₂O , Annabergite Ni₃(AsO₄)₂·8H₂O , Lavendulan NaCaCu₅(AsO₄)₄Cl·5H₂O , Algodonite (Cu_1-xAs_x) , Domeykite Cu₃As

Mohawk Mine, Mohawk, Allouez Township, Keweenaw County, Michigan, USA

Field of View: 1.5 mm

Pinkish erythrite with pale-pinkish cobaltoan annabergite on annabergite, with blue lavendulan on altered domeykite and algodonite. Field of view is 1.5 mm across.

Auto-FOV version 2

This is an updated version of the Auto-FOV hardware, a tool that automatically displays field of view in real time for micromineral photography using an adjustable bellows. This version includes a 2.4" touchscreen display for objective choice that is housed in a 3D-printed case. It uses an Adafruit feather STM32F405 express to calculate a rolling average field of view based on a laser sensor measurement of the bellow separation distance.

For more details on how that is done check out my article on the first version:

https://www.mindat.org/article.php/3898/Automated+Field+of+View+System

NN2-X0JOrientite Ca₈Mn³⁺₁₀(SiO₄)₃(Si₃O₁₀)₃(OH)₁₀·4H₂O , Braunite Mn²⁺Mn³⁺₆(SiO₄)O₈

Manganese Mine, Copper Harbor, Grant Township, Keweenaw County, Michigan, USA

Field of View: 1.6 mm

Partial replacement of braunite after orientite platelettes from the Manganese mine. Horizontal field of view is 1.6 mm.

U5R-DMHHeazlewoodite Ni₃S₂ , Pecoraite Ni₃(Si₂O₅)(OH)₄ , Nullaginite Ni₂(CO₃)(OH)₂ , Chrysotile Mg₃(Si₂O₅)(OH)₄

Ropes Gold Mine, Ishpeming Greenstone belt, Marquette County, Michigan, USA

Field of View: 5.86 mm

Altered mass of heazlewoodite crystals in Ni-bearing chrysotile from the Ropes Gold mine. Pale green massive pecoraite and apple green coatings of mostly amorphous "zaratite" are also in association – the PXRD pattern of the amorphous coatings is variable but each contains weak broad humps that can be fit to nullaginite or to the spectrum of "zaratite" reported by Isaacs (1963). Horizontal field of view is 5.86 mm.

U3L-CV8Nsutite (Mn⁴⁺,Mn²⁺)(O,OH)₂ , Neotocite (Mn,Fe,Mg)SiO₃·H₂O

West testpit, Taylor Mine, Alberta, Baraga County, Michigan, USA

Field of View: 6.1 mm

Grainy veinlets of grayish nsutite (XRD confirmed) in glassy black neotocite from the west test pit of the Alberta mine. The nsutite veinlet edges exhibit a fractal texture. Collected by Dan Fountain. Horizontal field of view is 6.1 mm.