Found before November 1965 along Tierra Blanca Creek, ~10 km southwest of Canyon in West Texas, the lone 860-gram stone was later recognized as a rare winonaite, one of only two examples ever recorded in the United States (the other being Winona, Arizona). A singular discovery from open ranch country, its entire known mass fits in the palm of a hand, which is why even micro-specimens are coveted.
 
Scientifically, Tierra Blanca occupies that fascinating threshold between primitive and evolved worlds: a “primitive achondrite” whose parent body began to melt but never fully differentiated. Petrographic work describes a coarse mosaic of orthopyroxene, olivine, plagioclase, and clinopyroxene—evidence of small-degree silicate melting and recrystallization rather than the chondrule-rich textures of ordinary chondrites. In other words, it’s a rare snapshot of planetary beginnings, preserved.
 
Learn more about Tierra Blanca: MetBul & Harvard 
 
Bespoke Sky Ventures is proud to choose the B612 Foundation as our chosen philanthropic partner. For more than two decades, B612 has approached the asteroid frontier with a rare combination of scientific rigor, practical imagination, and a profound sense of responsibility. B612 advances the knowledge and tools needed to protect Earth from potentially hazardous asteroid impacts while helping humanity better understand and navigate the solar system. Through its Asteroid Institute and the open-source ADAM platform, B612 is creating the capabilities required to discover asteroids, recover overlooked observations, refine their orbits, evaluate potential threats, and plan future journeys through space; work that has already revealed tens of thousands of high-confidence asteroid candidates hidden within existing astronomical data. Its support of Asteroid Day and the Schweickart Prize ensures that this vision extends beyond laboratories and computer code, strengthening public understanding while inviting a new generation of bright minds to consider the responsibilities that accompany humanity’s expansion into space. This mission is deeply aligned with our own belief that exploring the heavens must never be separated from caring for the world beneath them. At Bespoke Sky Ventures, we see stewardship of the planet as both a privilege and an obligation, and we believe that those who study, present, and preserve material from other worlds should also support the people working to safeguard this one. B612 embodies that principle at its highest level: exceptional minds, open knowledge, long horizons, and the conviction that foresight, wisely applied, can help protect our planet and secure humanity’s future among the stars.
 
Thank you for choosing Bespoke Sky Meteorites! We strive to provide you, our customer, with the best meteorite specimens from around the world! We understand that there are many options when purchasing meteorites, and we are genuinely appreciative that you would consider us!  
 
Warmest Regards,  
Grant & Katrina Harkness