- Oxford (Wikipedia)
Oxford (/ˈɒksfərd/) is a city and non-metropolitan district in Oxfordshire, England, of which it is the county town. Founded in the 8th century, it was granted city status in 1542. The city is located at the confluence of the rivers Thames (locally known as the Isis) and Cherwell. It had a population of 163,257 in 2022. It is 56 miles (90 km) north-west of London, 64 miles (103 km) south-east of Birmingham and 61 miles (98 km) north-east of Bristol. The city is home to the University of Oxford, the oldest university in the English-speaking world; it has buildings in every style of English architecture since late Anglo-Saxon. Oxford’s industries include motor manufacturing, education, publishing, science, and information technologies.
rockhounding site (unconfirmed)
- Rhodonite (Wikipedia)
Rhodonite is a manganese inosilicate, with the formula (Mn, Fe, Mg, Ca)SiO3, and member of the pyroxenoid group of minerals, crystallizing in the triclinic system. It commonly occurs as cleavable to compact masses with a rose-red color (its name comes from Ancient Greek ῥόδον (rhódon) ‘rose’), often tending to brown due to surface oxidation. The rose-red hue is caused by the manganese cation (Mn2+).