Mullite and spessartite in glassy matrix of manganese oxide-alumina-silica
Inclusion name: Mullite and spessartite
Record No.: 32
Inclusion formula: Mullite: 3Al2O3 x 2SiO2, spessartite: 3MnO x Al2O3 x 3SiO2
Inclusion type (Macro/Micro/Nano): Macro
Inclusion type (Exogenous/Indigenous): Indigenous
Inclusion classification: Oxide
Inclusion composition in weight %: Mu-Mullite with 26% SiO2 and 66% Al2O3. S-Spessartite with 38% MnO, 45% SiO2, 16% Al2O3. Sd-sulfide of MnS-type, M-matrix not analysed.
Sample: Basic open-hearth steel, ferrosilicon killed before tapping, after killed with aluminium. From a forged roll, normalized, air-hardened and tempered.
Steel composition in weight %: 0.62% C, 0.26% Si, 0.79% Mn, 0.015% P, 0.018% S, 0.65% Cr, 0.07% Ni.
Jerem is a BIG NERD, but a really cute one. He's calm and always knows what's the right thing to do, so everyone wants advices from him. It's 90% of Wulfe's self-cotrol and if Wulfenite hasn't yet blown up half of the Village its only thanks to Jerem!
Jerem and Painite are brothers, but they don't go along. Jerem is hard-working and reliable and Pai is.... NOT.
Fun fact: probably Jerem remembers exactly all the books content in the big village library, and used to be Putnisite assistant when he was young. Now they work together, FOR KNOWLEDGE!
SILLIMANITE:
Sillimanite is the real boss of the Village, and the Admirabilis usually call him "gem king". He's clever, can think fast and has always in mind the good of his community. He's wise, but can be angered quite easily. Has a obvious romantic relationship with Taaffeite, but he's too shy to admit it... his cute little brother is Mullite, and he's way TOO protective over him.
He lost half his face and a leg in a fight with lunarians at the Original Island, along with his former partner and big brother, Andalusite. They took Anda, but for some reason they decided to spare him. He never recovered from that trauma.
He knew that Adamant hides too many secrets, and he didnt like it. He felt like Adamant was making fun of their sacrifices, of their losses, and just went to another island with other 4 gems.
MULLITE:
Mullite is the second youngest. (The ages are based on Phos' post-hybernation). Mulli is not very talktive, but he's nice and good-hearted.
He wanted to be like his older brother Sillimanite, and be a good leader and a fearsome warrior, but his nature is gentle and quiet, and he loved art. Eosphorite the artist taught him how to work with ceramic, and he became the official artisan of ceramic now!
Osumilite is the gem most similiar to him in age, so the two often hang out together and do the things that the stupid teens usually do. Mullite likes to play and have fun with teen Admirabilis too, because... teens?
TOPAZOLITE:
the TIRED older brother of Demantoid, and his partner. He and Demantoid are the only patrol on the Mountain Island, and since Lunarians don't visit this island their work is mainly do what Champ does in the village, but outside: check everything is ok!
Topazolite can talk Admirabilis language, every dialect the various Admirabilis tribes have (he learnt those from the admirabilis heirs at the village, but the Admirabilis lore is for another post...) and solves troubles and drawbacks. He is tired, but he's not bad. He's still better with people than Champ, and even better than his brother Demantoid. Not a great challenge tho...
He is the youngest, along with his partner Osumilite, around his same age, and he’s Sillimanite’s younger brother since they have the same chemical composition. Sillimanite is really protective with him, and Mullite adores him and wants to be like big bro Silli.
Mullite is a quiet, silent child, that doesn’t really like crowd and chaos and prefers being alone (or with big bro Silli or Osu) doing jars and other things that everyone uses in the Village.
Though he’s hard and very tough, he’s a very peaceful kid. He really likes Taaffi for his carefree attitude and Taaffeite treats him as his very young baby son. Mulli has, pratically, two dads
(PS. he has eyes, but he’s very shy and doesn’t really like to be shown.)
They are Sillimanite's younger brother and want to be a fighter with their partner Osumilite. They are not even 100 years old and Silli is a VERY protective big brother so is a big NO-NO for them to fight.
Mulli is not easy to talk to, they are stubborn and shy.
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Mullite Ceramics: High-Temp Strength & Applications
Mullite ceramics are renowned for their exceptional high-temperature strength, thermal shock resistance, and durability. With a unique aluminium-silicon oxide crystal structure, mullite maintains stability and mechanical integrity even above 1500°C. Its fine, uniform grain structure enhances crack resistance and wear resistance, making it ideal for applications in aerospace, metallurgy, and refractory industries. Mullite's low thermal expansion and excellent corrosion resistance further extend its performance in extreme environments, supporting advanced industrial uses where reliability under heat is critical.
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