Metamorphic Marble Fudge
By Fureya Nelson Riggott FUREYA NELSON RIGGOTT made a fantastic geological recipe book in a previous Rockstar competition. Here we share three of her recipes to illustrate three different kinds of rock: one sedimentary, one igneous and one metamorphic. This is the third, or more specifically, metamorphic marble fudge. Metamorphic rock is formed when limestone is exposed to high temperatures and pressures. The word ‘marble’ comes from...
Edible Sedimentary Oolitic Limestone
By Fureya Nelson Riggott FUREYA NELSON RIGGOTT made a fantastic geological recipe book in a previous Rockstar competition. Here we share three of her recipes to illustrate three different kinds of rock: one sedimentary, one igneous and one metamorphic. Let’s start with sedimentary, or more specifically, Oolitic limestone. Oolitic limestone was formed in England in the Jurassic Period, and forms the Cotswold Hills, the Isle of...
Puddingstone Cake
By Susanna van Rose Britain has lots of pebble beaches. What happens to these huge collections of shingle when they turn into rock? SUSANNA VAN ROSE explains by using a fruit and nut cake you can make at home. What is a conglomerate? A real, proper conglomerate should be made of rounded pebbles, some of which touch each other. In between the pebbles is fine-grained material, often sandy in texture, which holds everything together....
Igneous Obsidian Toffee
By Fureya Nelson Riggott FUREYA NELSON RIGGOTT made a fantastic geological recipe book in a previous Rockstar competition. Here we share three of her recipes to illustrate three different kinds of rock: one sedimentary, one igneous and one metamorphic. This is the second, or more specifically, igneous obsidian toffee. Obsidian is a igneous rock type that is a natural glass very rich in silica (around 70%) and low in water. It is...