These are natural Vivianite blades, a beautiful and rare iron phosphate mineral known for its vibrant green color. These specimens are raw and unpolished, showcasing their natural form. Perfect for collectors, metaphysical use, or to add a touch of natural beauty to your space.
Details:
* Material: Vivianite
* Color: Green
* Size: Approximately 1-3 inches long
* Origin: Morocco
Vivianite is believed to promote inner peace, emotional healing, and spiritual growth. It is often used in meditation and energy work.
Please note that due to the natural variations in the stones, each piece will be unique in shape, size, and color. You will receive a similar piece to the one pictured.
Details:
* Material: Vivianite
* Color: Green
* Size: Approximately 1-3 inches long
* Origin: Morocco
Vivianite is believed to promote inner peace, emotional healing, and spiritual growth. It is often used in meditation and energy work.
Please note that due to the natural variations in the stones, each piece will be unique in shape, size, and color. You will receive a similar piece to the one pictured.
This document is a **scientific article** from *Nature* titled "Redox-driven mineral and organic associations in Jezero Crater, Mars." It details findings from the Perseverance rover's exploration of the Bright Angel formation within Jezero Crater on Mars.
**Key Findings:**
* The Bright Angel formation consists of mudstones containing organic carbon and minerals (ferrous iron phosphate and sulfide – vivianite and greigite).
* These minerals likely formed through post-depositional redox reactions involving organic matter at low temperatures.
* The rocks show evidence of aqueous alteration and a complex history of mineral precipitation and oxidation-reduction processes.
* The presence of organic carbon and redox-sensitive minerals suggests potential for biosignature preservation and warrants further investigation of the collected core sample.
* The study suggests that the formation of these minerals involved the oxidation of organic matter, leading to the reduction of iron and the precipitation of iron-phosphate and iron-sulfide minerals.
**Key Findings:**
* The Bright Angel formation consists of mudstones containing organic carbon and minerals (ferrous iron phosphate and sulfide – vivianite and greigite).
* These minerals likely formed through post-depositional redox reactions involving organic matter at low temperatures.
* The rocks show evidence of aqueous alteration and a complex history of mineral precipitation and oxidation-reduction processes.
* The presence of organic carbon and redox-sensitive minerals suggests potential for biosignature preservation and warrants further investigation of the collected core sample.
* The study suggests that the formation of these minerals involved the oxidation of organic matter, leading to the reduction of iron and the precipitation of iron-phosphate and iron-sulfide minerals.
Dr. David Todd and C.F. Jenkins attempt to intercept signals from Mars using a Jenkins Radio Camera in 1924.
