High Mesa Petrographics

High Mesa Petrographics High Mesa Petrographics® A thin sliver of rock is cut from the sample with a diamond saw and ground optically flat.

In optical mineralogy and petrography, a thin section (or petrographic thin section) is a laboratory preparation of a rock, mineral, soil, pottery, bones, or even metal sample for use with a polarizing petrographic microscope, electron microscope and electron microprobe. It is then mounted on a glass slide and then ground smooth using progressively finer abrasive grit until the sample is only 30 μ

m thick. The method involved using the Michel-Lévy interference colour chart. Typically quartz is used as the gauge to determine thickness as it is one of the most abundant minerals.When placed between two polarizing filters set at right angles to each other, the optical properties of the minerals in the thin section alter the colour and intensity of the light as seen by the viewer. As different minerals have different optical properties, most rock forming minerals can be easily identified. Plagioclase for example can be seen in the photo on the right as a clear mineral with multiple parallel twinning planes. The large blue-green minerals are clinopyroxene with some exsolution of orthopyroxene.Ultra-thin sectionsFine-grained rocks, particularly those containing minerals of high birefringence, such as calcite, are sometimes prepared as ultra-thin sections. An ordinary 30 μm thin section is prepared as described above but the slice of rock is attached to the glass slide using a soluble cement such as canada balsam (soluble in ethanol) to allow both sides to be worked on. The section is then polished on both sides using a fine diamond paste until it has a thickness in the range of 2-12 μm. This technique has been used to study the microstructure of fine-grained carbonates such as the Lochseitenkalk mylonite in which the matrix grains are less than 5 μm in size.[1] This method is also sometimes used in the preparation of mineral and rock specimens for transmission electron microscopy and allows greater accuracy in comparing features using both optical and electron imaging.[2]

Meteorite thin sections under polarized light in thin section prepared By Erik Karadeema at High Mesa Petrographics.
03/21/2026

Meteorite thin sections under polarized light in thin section prepared By Erik Karadeema at High Mesa Petrographics.

03/21/2026

High Mesa Petrographics — Our Story, Our Craft, Our Standard
For more than 14 years, I had the privilege of working directly with David A. Mann, one of the most respected and skilled craftsmen in the thin‑section industry. David taught me everything I know about the art, science, and discipline of thin‑section preparation. Although he is now semi‑retired, we still work together, and his influence continues to guide the standards we uphold every day.
In 2020, David sold me the business so I could carry on his legacy — and build one of my own. Together, we bring over 50 years of combined experience producing some of the finest thin sections available anywhere.
Over the decades, we have worked with:
• Major corporations
• Universities, colleges, and research institutions
• Private meteorite collectors
• Government and space‑science programs
Our experience includes preparing Apollo mission material and OSIRIS‑REx mission samples, a testament to the precision, trust, and reliability our clients expect from us.

What We Specialize In
We are known for producing thin sections that meet the highest scientific and optical standards, including:
• Fluid‑inclusion–grade (FI‑grade) thin sections
• Ultra‑thin, pit‑free, scratch‑free sections
• Meteorite and planetary materials
• Hard‑to‑polish, delicate, or unusual specimens
• Custom mounts and specialty slide formats
These are not mass‑produced slides — each one is crafted with intention, precision, and decades of hands‑on expertise.

Our Quality Standards
Every sample that enters our shop is handled with the same level of care and discipline:
• Strict thickness and optical‑flatness tolerances
• Multi‑stage grinding and polishing workflow
• Zero‑pit, zero‑scratch expectations
• Final inspection under transmitted and reflected light
• Senior‑level handling from start to finish
If a slide doesn’t meet our standards, it simply doesn’t leave the shop.

Why Clients Trust Us
Researchers, collectors, and institutions trust High Mesa Petrographics because we combine:
• Deep experience
• Traditional craftsmanship
• Modern precision
• Transparent communication
• Respect for every sample, no matter its origin or value
Whether your specimen is a rare meteorite, a research core, or a personal collection piece, it receives the same meticulous attention.

Our Mission
Our mission is to preserve the craftsmanship of traditional thin‑section making while continually improving the precision, consistency, and reliability that modern research demands. We honor the legacy of those who taught us while pushing the craft forward for the next generation.

Our Promise
We stand behind every slide we produce. Your material is handled with care, respect, and the highest level of professional craftsmanship. When you choose High Mesa Petrographics, you are choosing decades of experience, proven reliability, and a commitment to excellence.
Thank you for trusting High Mesa Petrographics with your thin‑section needs.

02/15/2026
https://www.tiktok.com/“Excited to launch my new TikTok channel 🎥🔬—showcasing the beauty and complexity of thin sections...
09/23/2025

https://www.tiktok.com/
“Excited to launch my new TikTok channel 🎥🔬—showcasing the beauty and complexity of thin sections, from meteorites to terrestrial rocks. Follow for behind-the-scenes prep, polarized light reveals, and more.”

Stop by , check out the videos, and give us a like if you enjoy seeing geology under the microscope 🔬✨

Your support helps us keep sharing the beauty of the micro-world!

15 Followers, 39 Following, 5 Likes - Watch awesome short videos created by Erik

We are currently taking orders if you have something send it
07/31/2025

We are currently taking orders if you have something send it

Address

21 Calle Trujillo
Ranchos De Taos, NM
87557

Opening Hours

Monday 9am - 4pm
Tuesday 9am - 4pm
Wednesday 9am - 4pm
Thursday 9am - 4pm
Friday 9am - 4pm

Telephone

+15057098532

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