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Day 286 : Listed in the Cotton collection, Keele as Laurvigike after the Danish spelling of the Norweigan town of Larvik. This is a monzonite with perthitic feldspars and titanaugite.

Day 285 : Garnets (Cape Rubies), from Kimberley, South Africa. Cotton collection, Keele.

Day 284 : A quartz crystal, locality unknown, Cotton collection, Keele.

Day 283 : Spurrite, a calcium nesosilicate, from South Sisters Peak, Tres Hermanas District, Luna Co., New Mexico, USA. Cotton collection, Keele.

Day 282 : Sodalite [Na8(Al6Si6O24)Cl2] from Minas Gerais, Brazil. Cotton collection, Keele.

Day 281 : Chloanthite (nickle arsenide), now regarded as an arsenic-deficient variety of Nickel-Skutterudite. From Schneeberg District, Erzgebirge, Saxony, Germany. Cotton collection, Keele.  

Day 280 : Three calcium silicate / nesosilicate with carbonate minerals created when high temperature molten basalt comes into contact with chalk or limestone, Larnite [Ca2SiO4], Scawtite [Ca7(Si3O9)2CO3·2H2O] and Spurrite [Ca5(SiO4)2(CO3)]. From the type locality of the second mineral, Scawt Hill, Larne, County Antrim, Northern Ireland. Cotton collection, Keele.

Day 279 : Torbernite (copper uranium phosphate) from Wheal Basset, Illogan, Cornwall, UK. Cotton collection, Keele.

Day 278 : Hemimorphite (zinc silicate) from the Golconda Mine, Hopton, Derbyshire, England, UK. Cotton collection, Keele.

Day 277 : Chrysocolla (copper silicate) from the Greek chrysos, meaning “gold,” and kolla, meaning “glue,” refering to material used to solder gold. M?d?nec (Kupferberg), Ústí Region, Bohemia, Czech Republic. Cotton collection, Keele.