In Trails of Cold Steel IV, there is a trophy called The Legendary Rean QUARTZ-er. In order to earn this trophy, you will need to gather all 31 varieties of master quartz. Below is a guide on where you can obtain them!
Act 1: The Trials of Class VII
- Deva – Obtained on 8/2 as part of the story
- Sirius – Obtained on 8/2 as part of the story
- Skuld – Obtained on 8/2 as part of the story
- Moebius – On 8/7 purchase for 2000 mira from Chamber’s Orbal Factory in the Residential District of Saint-Arkh
- Beowulf – On 8/7 found in a treasure chest in Draco Shrine
- Minotauros – On 8/10 purchase at Diana’s General Store in Milsante for 3200 mira
- Gloom – On 8/10 found in a treasure chest near the fishing spot in North Languedoc Canyon Road 2
- Katze – On 8/15 purchase from the Orbment Charging Station++ for 4,800 mira
- Kaleido – Achieve Special Ops Rank B2
Act 2: Guiding Starlight
- Pandora – On 8/20 purchase at the Merkabah Orbal Factory for 6400 mira
- Emblem – Obtained on 8/25 from a chest in the Pool / Training Ground
Act 3: Seekers of the Dawn
- Oberon – On 8/27 purchase from Mint in Engineering for 8,000 mira
- Aegis – On 8/27 obtained from a treasure chest in Auros Coastal Road 2
- Valhalla – Reach Special Ops Rank A1
Finale: Scattered Petals, Dying Flames
- Chevalier – Report 80% of the battle notes
- Magius – Report 80% of the profile notes
- Woden – On 9/1 win Vantage Masters against Viscount Arseid in the Courageous II 3F Recreation Room
- Erda – Win against all the Pom! Pom! Party! opponents