Jessica
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jmgeophoto.bsky.social
Jessica
@jmgeophoto.bsky.social
310 followers 420 following 120 posts
Rocks, fossils, sand & more. Photographer and non-practicing geologist. All photography my own. I love komatiite and I love sand.📍Texas

Geology-only account of @jesswithacamera
IG: jmgeophoto
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jmgeophoto.bsky.social
Jessica @jmgeophoto.bsky.social · Jul 28
I’ve decided to repurpose this account for geology-only content to echo my Instagram. If you like photos of rocks, sands, minerals, fossils, geologic features, I hope you stay! You can still find my regular photography at @jesswithacamera .

#geology #geologyrocks #rockcollecting #paleontology
Photograph of a woman in black pants and a green plaid flannel unbuttoned over a black tee shirt. She is wearing a straw hat with a wide, flat brim, somewhat similar to hats worn by the National Park Service rangers. She is surrounded by boulders and in front of an opening that show a blue sky in the background.
Reposted by Jessica
callanbentley.bsky.social
Unakite after the rock saw. No filter; it really is that color. ⚒️
A hand holding a large sample of rock above a sudsy bucket. The rock is deep salmon pink and a lurid pistachio ice cream green.
September 11, 2025 at 3:01 PM
Reposted by Jessica
jmgeophoto.bsky.social
Detail of rutile and hematite. Field of view is about 17mm wide. Person collection. Image my own.

Locality: Brazil. Dimensions: 30 x 20 x 4 mm

#MineralMonday #MacroMonday #geology
Macro photograph showing detail of golden, straw-like rutile growing from a metallic black specimen of hematite.
September 8, 2025 at 1:54 PM
jmgeophoto.bsky.social
Detail of rutile and hematite. Field of view is about 17mm wide. Person collection. Image my own.

Locality: Brazil. Dimensions: 30 x 20 x 4 mm

#MineralMonday #MacroMonday #geology
Macro photograph showing detail of golden, straw-like rutile growing from a metallic black specimen of hematite.
September 8, 2025 at 1:54 PM
jmgeophoto.bsky.social
A classic for #RockinTuesday : Lake Superior agate.

#lakesuperior #agate #rocks
A photograph of a Lake Superior agate on a black background. The agate is unpolished and somewhat rounded, red in color with many thin, white bands across the front at an angle.
August 12, 2025 at 11:38 AM
jmgeophoto.bsky.social
I don’t specialize in any specific locality, but I *am* very fond of Greeland pieces.

Tugtupite, hackmanite, analcime, chkalovite, etc. Taseq west slope, Ilimaussaq Complex, Greenland. 6.4x3.8x2.5 cm. Shown under 254nm (left) & visible light (right).

#fluorescence #uv #geologyrocks #geology
Diptych photograph of a fluorescent rock on a solid black background. On the left the minerals in the rock flow neon bubblegum pink, mint green, dark pink, and some blue. On the right the rock appears to be a mix of gray and white with a few small areas of very pale pink.
August 7, 2025 at 6:23 PM
jmgeophoto.bsky.social
Biogenic sand from Exmouth, Western Australia. Grains consist primarily of coral and shell fragments, as well as many octocoral spicules.

#MacroMonday #sand #arenophile #sandgrains #macrophotography
Macro photograph of sand grains that are mostly white and tan, with a mix of different shapes and textures.
August 4, 2025 at 1:14 PM
jmgeophoto.bsky.social
#Fluorescent willemite (green), smithsonite (red), and hydrozincite (blue). Third Plain Zinc Deposit, South Australia. 12x9x8 cm

Personal collection, photo my own.

Left: shortwave UV (254nm)
Right: visible light

#fluorescence #geologyrocks #uv #geology
A photograph showing the same rock, side-by-side, but on the left it is fluorescing a pale mint green with a line of deep magenta running through it and a few specks of neon sky blue. On the right the rock is shown under visible light and is not fluorescing. It is a boring cream color with some gray and brown areas.
August 3, 2025 at 12:53 PM
jmgeophoto.bsky.social
A photo from the field, 2022. Gyspum/anhydrite alternating with limestone. The nicknamed “State Line Roadcut” on the TX/NM border is one of the only places you can see an outcropping of Castile Formation (Permian) with its stunning folds.

#permian #rocks #gypsum #geology
Photograph of a hand holding a large rock sample. The rock has a fairly flat face and has very thin, alternating bands of brown layers with thicker bands of white layers. The layers have many small folds across the length of the rock.
August 2, 2025 at 2:47 PM
jmgeophoto.bsky.social
Olivine sand with some basalt grains. South Point, Hawaii. Collected prior to current laws prohibiting removal.

#arenophile #sand #olivine #greensand
Macro photograph of translucent green sand grains composed of olivine. There are also black basalt grains present.
August 1, 2025 at 6:45 PM
jmgeophoto.bsky.social
For #FossilFriday here’s a poster I made showcasing the variety of fossils that can be found in Texas . I made a similar poster for the Lewisville public library. All are specimen I personally found, photographs my own.

#cretaceous #paleontology #ammonite #crinoid #fossils
A poster showing 10 different kinds of fossils that can be found in Texas. Each fossil is photographed on a black background, with text next to it naming the fossil type, geologic period or sub-period, and county where it was found. Here are the fossils that are shown: • Bivalves, Eocene, Burleson County • Coral, Pennsylvanian, Jack County • Echinoid, Cretaceous, Bell County • Gastropod, Eocene, Burleson County • Dromaeosaurid tooth, Cretaceous, Brewster County • Mosasaur tooth, Cretaceous, Fannin County, • Ammonite, Cretaceous, Tarrant County • Gastropod, Eocene, Burleson County • Crinoids, Pennsylvanian, Coleman County • Brachiopod, Pennsylvanian, Jack County
August 1, 2025 at 2:45 PM
jmgeophoto.bsky.social
Fossil bivalve Fimbrinia plummeri, only 12mm wide. From the Graham Formation (Pennsylvanian). I took this before I learned about image stacking; time for a re-shoot!

#fossil #bivalve #carboniferous
Photograph of a small bivalve on a black surface.
July 31, 2025 at 12:12 PM
Reposted by Jessica
vaccinium-sultan.bsky.social
Titaniferous #augite with #olivine ingrowths
Koko Rift, #Honolulu #Volcanics
#Oʻahu, #Hawaiʻi

#geoscience #clinopyroxene #mineral #titanaugite #geology
July 30, 2025 at 6:59 PM
jmgeophoto.bsky.social
When you have 2 identical Polaroids but only 1 works, you mark it with a really rad volcano sticker by @sciartbro.bsky.social !

In related news, I need more geology, paleontology, and earth science accounts to fill my feed. Tell me more #earthscience accounts I should follow pls

#volcano #sciart
Photograph of a hand holding up a Polaroid One Step camera. The back of the camera is facing the viewer and has a sticker on it that is an illustration of an erupting volcano created by the Etsy shop SciArtBro.
July 30, 2025 at 10:12 PM
Reposted by Jessica
bluewizardrocks.bsky.social
Some recently polished self collected south Texas beauties. #bluewizardrocks #lapidary #agate #agates #rgv #rocktumbling
July 23, 2025 at 4:49 PM
jmgeophoto.bsky.social
Quartz and feldspar grains from Corsica, France.

#sand #arenophile
Macro photograph of sand/gravel grains consisting of translucent and gray quartz, and tan and peach colored feldspar.
July 30, 2025 at 12:29 PM
jmgeophoto.bsky.social
This is a truly horrific photo, but this is how much I love #sand : each of those drawers is filled with ~10 tubes of sand.

#sandcollecting #sedimentology
A photograph of two open bookcases with small drawers on every shelf. The drawers are clear acrylic and inside each can be see clear tubes filled with sand. Also decorating the shelves are various rocks and fossils.
July 30, 2025 at 12:46 AM
jmgeophoto.bsky.social
Every day is #RockinTuesday if you love rocks enough. This slab of #komatiite, a rare igneous rock, is an excellent example of #spinifex texture. Personal collection; photograph my own.

• Central Goldfields, Western Australia, 6x5.5x0.6 cm

#geology #geologyrocks #rocks #igneous #rockcollection
A photograph of a slab of the rock komatiite. The slab is green in color with dark green lines across the front. It is shown on a black background.
July 29, 2025 at 11:26 AM
jmgeophoto.bsky.social
Iceland is often associated with black sand, but it’s not the only kind on the island. This sand/gravel sample from Rauðisandur Beach is comprised of barnacle and shell fragments, and basalt.

#sandcollection #sand #beachsand #shells
A macro photograph is an orange-colored sand/gravel sample. There are fragments of barnacles and shells that are orange, as well as some white shell fragments and black basalt grains.
July 28, 2025 at 11:54 PM
jmgeophoto.bsky.social
Let’s kick this off with some nice, backlit #purple #fluorite . Without the backlight this piece actually looks black.

Locality: Múzquiz, Mexico
Dimensions: 5x4x3 cm
Photograph of a dark purple fluorite on a black background.
July 28, 2025 at 10:18 PM
jmgeophoto.bsky.social
I’ve decided to repurpose this account for geology-only content to echo my Instagram. If you like photos of rocks, sands, minerals, fossils, geologic features, I hope you stay! You can still find my regular photography at @jesswithacamera .

#geology #geologyrocks #rockcollecting #paleontology
Photograph of a woman in black pants and a green plaid flannel unbuttoned over a black tee shirt. She is wearing a straw hat with a wide, flat brim, somewhat similar to hats worn by the National Park Service rangers. She is surrounded by boulders and in front of an opening that show a blue sky in the background.
July 28, 2025 at 8:06 PM