Rogers Mine, Rogers mine property, Centre Hastings Municipality, Hastings County, Ontario, Canada
One of the few specimens I recovered on the floor of a small pocket off the main vein. Three cuboctahedrons on a bladed baryte. The main crystal (2.5cm) is a classic cuboctahedron - the cube and octahedral faces being almost exactly the same relative size, so that the two forms are equally developed. There is interesting growth on some faces. One ...
© JR Montgomery
Fluorite occurrence 1, Rogers Mine, Rogers mine property, Centre Hastings Municipality, Hastings County, Ontario, Canada
Two generations of fluorite forming five columnar aggregates comprised of grey-green translucent to transparent cubic fluorite crystals up to 5mm. Most are slightly truncated by octahedral faces. Video shows the jewel-like quality of this specimen. JR Montgomery Collection cat.#914
Yellow-green intergrown cubic fluorite crystals truncated on the corners by the octahedron. Crystals to 4.7cm. with stepped growth on the cube faces. Good transparency (see video) despite light natural etching on the faces allowing the matrix to be viewed through the crystals. Minor baryte and deep purple-blue massive fluorite matrix. ...
© JRMontgomery
A cluster of internally clear cubic fluorite crystals to 5.5cm. Naturally etched surfaces. The corners are truncated by the octahedron which is characteristic for this locality. Zoning can been seen with fluorescence under LW UV light (child photo). Personally collected April 29, 2022 JR Montgomery Collection cat.#815
You don't often get clear crystals from this occurrence but this one is and inclusions are visible as is the zoning which really "pops" under LW UV light. Crystals to 4.6cm on edge slightly modified by octahedral faces that truncate the corners of the cube. Mosaic patterning on the cube faces. On two of the faces crystals have penetrated the face ...
Glassy, clear yellow-green cuboctahedrons to 2.7cm and smaller octahedrons tightly intergrown around three sides of this specimen. Found in the mud of a pocket in the vein. The specimen was almost completely covered with crud that didn’t come off with soaking and bushing with toothbrush and liquid soap BUT it all came off with a water gun which ...
A cluster of cuboctahedral fluorite crystals to 4.5cm with mosaic patterning on the cube faces growing on massive fluorite. The corners of the crystals have been truncated by the octahedron as is often the case at this locality. Fluorescence reveals zoning under LW UV light (child photo) Personally collected April 22, 2022 JR Montgomery ...
Columnar fluorite specimen with internally transparent stacked cuboctahedral fluorite crystals to !.7cm with the largest crystal sitting on top. Complete all around. Black inclusions seen in video. Personally collected JR Montgomery Collection cat.#835
A terminated scalenohedral calcite crystal (uncommon from this locality) 4.8cm coated on two faces with pale green/colourless modified cubic fluorite crystals and white bladed baryte. Strong fluorescence under LW UV light showing zoning in the fluorite which is very common at this occurrence. Personally collected April 12, 2022. JR ...
Two transparent, intense green, intergrown cuboctahedrons to 5cm on a very thin matrix of fluorite and baryte visible through the crystals. These crystals likely started off as octahedrons, but towards the end of growth switched to growing as a cubes so you have "square" steps on what would have been a point of the octahedron. This "stepped" ...
A small cluster of clear yellow fluorite cuboctahedrons which display concentric zoning under LW UV light as seen in this photo. Personally Collected JR Montgomery Collection cat.#844
The presence of hydrocarbon during at least two stages of crystal growth appears to have caused first, a thin ~0.5mm white layer of what appears to be baryte forming on the cube faces on two of the crystals (seen in this photo), and second, at a later stage of growth, another layer of hydrocarbon appears to have caused numerous tightly ...
A small 1.5cm transparent yellow-green cuboctahedron fluorite crystal, the cube and octahedral faces being almost exactly the same relative size, so that the two forms are equally developed. The crystal sits on minor bladed baryte and equally clear partial fluorite crystals. Personally collected with Dave Maclean, 2020. JR Montgomery cat.#671
A large plate ( 26x20x8cm ) of yellow-green fluorite crystals to 5.4cm chiseled off the wall of the vein about 7 feet down comprised of much darker green cuboctahedron crystals than normally found at this classic locality. Transparency allows the matrix to be seen through the crystals. Crystals grow with baryte on massive blue fluorite matrix. ...
A pair of yellowish-green octahedrons truncated by the cube to 3.3cm. Clear interiors. Fluorescence under LW UV light (child photo). Personally collected August, 2020. JR Montgomery Collection cat.#673
A grouping of sharp cubic fluorite crystals to 3.5 cm. The corners are truncated by the octahedron and the faces display mosaic patterning on the cube faces. (see video). Fluorescence under LW UV lighting reveals concentric zoning. Personally collected November 2020. JR Montgomery Collection cat.#696
Modified glassy cubic fluorite crystals to 1.5cm. with mosaicity and pronounced concentric zoning*. Fluorescence showing pink, purple, white zones under LW UV light causing the zoning to pop. (full specimen under LWUV light see child photo) * Many of the crystals we collected at this occurrence were zoned but I found none at the Rogers Mine. ...
Scheel Drive roadcut, McNab Township, McNab/Braeside, Renfrew County, Ontario, Canada
When I saw this fluorite crystal in situ I thought I was looking at a faceted gem stuck on the rock! Gemmy fluorite crystals are not well known in this part of the world. The brightness is in part the result of much stepped growth. I was overjoyed to get it out into a manageable matrix piece. Personally collected May,2016. Cat.#758
A large plate of mainly cuboctahedral fluorite crystals to 5.3cm. This specimen was chiselled off the wall of a very narrow fault about 8 feet below surface (dug by hand tools) when the vein was pinching out making it very difficult to extract the crystals in large plates. The crystals are yellow-green, ranging from dark to light green and ...
Fluorescence under LW UV light (long UV range, but shifted a bit towards the middle range). One of only a few specimens I recovered in a small pocket off the main vein. Intergrown clear, despite light natural surface etching, green and green-yellow cuboctahedrons to 2.3cm with mosaic patterning on the cube faces. The crystal second from the ...
The main bright green cuboctahedron 3.5cm has good transparency despite light natural etching. Smaller cuboctahedrons growing around it are also transparent. They grow on a matrix of massive blue fluorite with minor baryte. Fluorescence under LW UV light (child photo). Personally collected with Dave Maclean, June 2020 JR Montgomery ...
Glassy cubic fluorite crystals to 2.2cm slightly modified by the octahedron. Zoning can be detected in daylight but under LWUV light (long UV range, but shifted a bit towards the middle range) the zoned areas really pop. (video) * I have not found any specimens with zoning from the Rogers Mine but several from this occurrence on the Rogers ...
Hand-sized specimen of multi-green coloured fluorite cubes to 3.0cm with octahedral modifications, displaying mosaic pattern and concentric zoning. Under fluorescence with LWUV light (long UV range, but shifted a bit towards the middle range) the concentric zoning is even more apparent. * I have not found any specimens with zoning from the ...
A pale green gemmy 7mm octahedral fluorite crystal truncated by the cube sits on bladed baryte. Strong fluorescence under LW UV light (child photo). Personally collected Sept.2014. JR Montgomery Collection cat.#213
Pale blue-green parallel growth cubes that have been strongly modified by the octahedron to nearly the 50:50 point. The fluorite crystals grew first and they were then overgrown by the white bladed baryte. (before cleaning, see video) Personally collected 2020. JR Montgomery Collection cat.#683
Typical Roger's Mine cuboctahedron crystals with stepped growth on the cube faces. Main crystal is 3 x 2.3 x 2cm surrounded by smaller crystals and bladed baryte on a blue/grey fluorite matrix. Personally collected October, 2013. JR Montgomery Collection cat.#141
Complex crystal pale green colour typical of Rogers' specimens especially those retrieved at surface as was this one. 2.1cm across, on bladed baryte matrix. Personally collected April 2017 JR Montgomery Collection cat.#405
A grouping of 5 intergrown translucent cubic fluorite crystals to 3.8cm. the corners slightly modified by the octahedron. The cube faces of all the crystals have mosaic patterning which is a common feature for this occurrence. Under LW UV light zoning is observed (child photo). Personally collected April 29, 2022 JR Montgomery Collection ...
The large green cuboctahedron fluorite crystal 4.0cm. lies flat on purple/blue massive fluorite matrix surrounded by yellow/green intergrown modified fluorite crystals. (see video) Personally collected with Dave McLean June, 2020
Columnar fluorite specimen with stacked pale green to colourless sharp cubes to 1.5cm truncated by the octahedral face. Complete all round (video). Personally collected May,2020. JR Montgomery Collection cat.#701
Modified cubes to 1.8cm. with zoning* and mosaic pattern on cube faces with bladed baryte . (See video) Concentric zoning visible in regular light as seen in this photo and more so under LW UV light (child photo) Personally collected 2020. Cat.#702 * I have not found any specimens with zoning from the Rogers Mine but several from this ...
Concentric zoning* seen under regular light in this modified cube 1.5cm on edge with mosaic pattern on cube faces growing on a bladed baryte and massive fluorite matrix. (see video). Under LW UV light the zoning really "pops" (child photo). * Many of the crystals we collected at this occurrence were zoned but I found none at the Rogers ...
