2023-12 Axinites – The Borosilicate Beauties
2023 -9 Actinolite – Greenschist Spray
2023-5 Sphalerite – Bold and Brassy
2023-2 Sodalite – Royal Blue Starfire
2022-12 Skutterudite – Cobalt Colossus
2022-7 Apatite – Your Mineral Smile
2022-4 Wolframite – The Mineral that Illuminated the World
2022-1 Rutile – The Petrogenetic Wizard
2021-7 Dioptase – The Emerald Imposter
2021-4 Wollastonite – The Most Versatile Pyroxenoid
2021-1 Adamite – Fluorescent Lemon Drop
2020-11 Cuprite – The Mineral Glowing Ember
2020-7 Creedite – A Rare Fluorinated Sulfate
2020-4 Amazonite – The Blue Flash of the Rockies
2020-1 Stibnite – The Metallic Explosion
2019-10 Stilbite – One Zeolite Rock Star
2019-7 Cinnabar – Quicksilver Messenger
2019-4 Rhodochrosite – The Red Jewel of the Rockies
2019-1 Cassiterite – Catalyst of Human Technological Advance
2018-5 Titanite – The Wedge-Shaped Timepiece
2017-12 Pyrolusite – Stealth Manganese
2017-10 Vanadinite – Six-Sided Scintillator
2017-8 Vesuvianite – One Complicated Silicate
2017-7 Tetrahedrite – The Most Important Sulfosalt
2017-6 Spodumene – The Pegmatite Giant
2017-4 Siderite – Ferrous and Fizzy
2016-5 Epidote – The Pistachio Green Mineral
2016-2 Orpiment – Pretty Poison
2015-12 Carnotite – A Mineral Agent of Transformation
2015-11 Molybdenite – The Mineral Swiss Army Knife
Rocky Mountain Association of Geologists (RMAG) On-the-Rocks Fieldtrip Write-ups
2023-6 RMAG On the Rocks: CEMEX Niobrara Quarry, Lyons Colorado
2022-1 2021 Sediment-Hosted Vanadium-Uranium of the Colorado Plateau
2014-12 Neoproterozoic to Ordovician: Front Range Structure near Colorado Springs